<?xml version="1.0" encoding="US-ASCII" standalone="no"?>
    <!-- Field: Doc-Info; Name: Generator; Value: GoFiler Complete; Version: 3.1g -->
    <!-- Field: Doc-Info; Name: VendorURI; Value: http://www.novaworks.co -->
    <!-- Field: Doc-Info; Name: Source; Value: espey12312011.xfr; Date: 2012/02/14T19:05:24 -->
    <!-- Field: Doc-Info; Name: Status; Value: 0x00000000 -->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrli="http://www.xbrl.org/2003/instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
    <link:roleRef roleURI="http://espry.com/role/DocumentAndEntityInformation" xlink:href="esp-20111231.xsd#DocumentAndEntityInformation" xlink:type="simple" />
    <link:roleRef roleURI="http://espry.com/role/BalanceSheets" xlink:href="esp-20111231.xsd#BalanceSheets" xlink:type="simple" />
    <link:roleRef roleURI="http://espry.com/role/BalanceSheetsParenthetical" xlink:href="esp-20111231.xsd#BalanceSheetsParenthetical" xlink:type="simple" />
    <link:roleRef roleURI="http://espry.com/role/StatementsOfIncome" xlink:href="esp-20111231.xsd#StatementsOfIncome" xlink:type="simple" />
    <link:roleRef roleURI="http://espry.com/role/StatementsOfCashFlows" xlink:href="esp-20111231.xsd#StatementsOfCashFlows" xlink:type="simple" />
    <link:roleRef roleURI="http://espry.com/role/BasisOfPresentation" xlink:href="esp-20111231.xsd#BasisOfPresentation" xlink:type="simple" />
    <link:roleRef roleURI="http://espry.com/role/NetIncomePerShare" xlink:href="esp-20111231.xsd#NetIncomePerShare" xlink:type="simple" />
    <link:roleRef roleURI="http://espry.com/role/StockBasedCompensation" xlink:href="esp-20111231.xsd#StockBasedCompensation" xlink:type="simple" />
    <link:roleRef roleURI="http://espry.com/role/CommitmentsAndContingencies" xlink:href="esp-20111231.xsd#CommitmentsAndContingencies" xlink:type="simple" />
    <link:roleRef roleURI="http://espry.com/role/RecentlyIssuedAccountingStandards" xlink:href="esp-20111231.xsd#RecentlyIssuedAccountingStandards" xlink:type="simple" />
    <link:roleRef roleURI="http://espry.com/role/EmployeeStockOwnershipPlan" xlink:href="esp-20111231.xsd#EmployeeStockOwnershipPlan" xlink:type="simple" />
    <link:calculationLink xlink:type="extended" xlink:role="http://espry.com/role/DocumentAndEntityInformation" xlink:title="0001 - Document - Document and Entity Information" />
    <link:calculationLink xlink:type="extended" xlink:role="http://espry.com/role/BalanceSheets" xlink:title="0002 - Statement - Balance Sheets (Unaudited)">
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_espInventoryNet" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InventoryRawMaterials" xlink:label="loc_espInventoryRawMaterials" />
      <link:calculationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espInventoryNet" xlink:to="loc_espInventoryRawMaterials" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InventoryWorkInProcess" xlink:label="loc_espInventoryWorkInProcess" />
      <link:calculationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espInventoryNet" xlink:to="loc_espInventoryWorkInProcess" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InventoryForLongTermContractsOrPrograms" xlink:label="loc_espInventoryForLongTermContractsOrPrograms" />
      <link:calculationArc order="300" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espInventoryNet" xlink:to="loc_espInventoryForLongTermContractsOrPrograms" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_espAssetsCurrent" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_espCashAndCashEquivalentsAtCarryingValue" />
      <link:calculationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espAssetsCurrent" xlink:to="loc_espCashAndCashEquivalentsAtCarryingValue" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_MarketableSecuritiesCurrent" xlink:label="loc_espMarketableSecuritiesCurrent" />
      <link:calculationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espAssetsCurrent" xlink:to="loc_espMarketableSecuritiesCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_espAccountsReceivableNetCurrent" />
      <link:calculationArc order="300" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espAssetsCurrent" xlink:to="loc_espAccountsReceivableNetCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxesReceivable" xlink:label="loc_espIncomeTaxesReceivable" />
      <link:calculationArc order="400" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espAssetsCurrent" xlink:to="loc_espIncomeTaxesReceivable" xlink:type="arc" weight="1" />
      <link:calculationArc order="500" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espAssetsCurrent" xlink:to="loc_espInventoryNet" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsNetCurrent" xlink:label="loc_espDeferredTaxAssetsNetCurrent" />
      <link:calculationArc order="600" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espAssetsCurrent" xlink:to="loc_espDeferredTaxAssetsNetCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_espPrepaidExpenseAndOtherAssetsCurrent" />
      <link:calculationArc order="700" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espAssetsCurrent" xlink:to="loc_espPrepaidExpenseAndOtherAssetsCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Assets" xlink:label="loc_espAssets" />
      <link:calculationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espAssets" xlink:to="loc_espAssetsCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_espPropertyPlantAndEquipmentNet" />
      <link:calculationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espAssets" xlink:to="loc_espPropertyPlantAndEquipmentNet" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NotesAndLoansReceivableGrossNoncurrent" xlink:label="loc_espNotesAndLoansReceivableGrossNoncurrent" />
      <link:calculationArc order="300" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espAssets" xlink:to="loc_espNotesAndLoansReceivableGrossNoncurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_espLiabilitiesCurrent" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_espAccountsPayableCurrent" />
      <link:calculationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espLiabilitiesCurrent" xlink:to="loc_espAccountsPayableCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccruedSalariesCurrent" xlink:label="loc_espAccruedSalariesCurrent" />
      <link:calculationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espLiabilitiesCurrent" xlink:to="loc_espAccruedSalariesCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccruedVacationCurrent" xlink:label="loc_espAccruedVacationCurrent" />
      <link:calculationArc order="300" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espLiabilitiesCurrent" xlink:to="loc_espAccruedVacationCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherEmployeeRelatedLiabilitiesCurrent" xlink:label="loc_espOtherEmployeeRelatedLiabilitiesCurrent" />
      <link:calculationArc order="400" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espLiabilitiesCurrent" xlink:to="loc_espOtherEmployeeRelatedLiabilitiesCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccruedPayrollTaxesCurrent" xlink:label="loc_espAccruedPayrollTaxesCurrent" />
      <link:calculationArc order="500" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espLiabilitiesCurrent" xlink:to="loc_espAccruedPayrollTaxesCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccruedIncomeTaxesCurrent" xlink:label="loc_espAccruedIncomeTaxesCurrent" />
      <link:calculationArc order="600" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espLiabilitiesCurrent" xlink:to="loc_espAccruedIncomeTaxesCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredCompensationShareBasedArrangementsLiabilityCurrent" xlink:label="loc_espDeferredCompensationShareBasedArrangementsLiabilityCurrent" />
      <link:calculationArc order="700" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espLiabilitiesCurrent" xlink:to="loc_espDeferredCompensationShareBasedArrangementsLiabilityCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesNoncurrent" xlink:label="loc_espLiabilitiesNoncurrent" />
      <link:calculationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espLiabilitiesNoncurrent" xlink:to="loc_espLiabilitiesCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:label="loc_espDeferredTaxLiabilitiesNoncurrent" />
      <link:calculationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espLiabilitiesNoncurrent" xlink:to="loc_espDeferredTaxLiabilitiesNoncurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="esp-20111231.xsd#esp_TotalStockholdersEquityBeforyEsopAndTreasuryStock" xlink:label="loc_espTotalStockholdersEquityBeforyEsopAndTreasuryStock" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_espCommonStockValue" />
      <link:calculationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espTotalStockholdersEquityBeforyEsopAndTreasuryStock" xlink:to="loc_espCommonStockValue" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="loc_espAdditionalPaidInCapitalCommonStock" />
      <link:calculationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espTotalStockholdersEquityBeforyEsopAndTreasuryStock" xlink:to="loc_espAdditionalPaidInCapitalCommonStock" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_espRetainedEarningsAccumulatedDeficit" />
      <link:calculationArc order="300" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espTotalStockholdersEquityBeforyEsopAndTreasuryStock" xlink:to="loc_espRetainedEarningsAccumulatedDeficit" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_espAccumulatedOtherComprehensiveIncomeLossNetOfTax" />
      <link:calculationArc order="400" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espTotalStockholdersEquityBeforyEsopAndTreasuryStock" xlink:to="loc_espAccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_espStockholdersEquity" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_UnearnedESOPShares" xlink:label="loc_espUnearnedESOPShares" />
      <link:calculationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espStockholdersEquity" xlink:to="loc_espUnearnedESOPShares" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_espTreasuryStockValue" />
      <link:calculationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espStockholdersEquity" xlink:to="loc_espTreasuryStockValue" xlink:type="arc" weight="-1" />
      <link:calculationArc order="300" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espStockholdersEquity" xlink:to="loc_espTotalStockholdersEquityBeforyEsopAndTreasuryStock" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_espLiabilitiesAndStockholdersEquity" />
      <link:calculationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espLiabilitiesAndStockholdersEquity" xlink:to="loc_espLiabilitiesNoncurrent" xlink:type="arc" weight="1" />
      <link:calculationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espLiabilitiesAndStockholdersEquity" xlink:to="loc_espStockholdersEquity" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://espry.com/role/BalanceSheetsParenthetical" xlink:title="0003 - Statement - Balance Sheets (Parenthetical)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://espry.com/role/StatementsOfIncome" xlink:title="0004 - Statement - Statements of Income (Unaudited)">
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_espGrossProfit" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SalesRevenueGoodsNet" xlink:label="loc_espSalesRevenueGoodsNet" />
      <link:calculationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espGrossProfit" xlink:to="loc_espSalesRevenueGoodsNet" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CostOfGoodsSold" xlink:label="loc_espCostOfGoodsSold" />
      <link:calculationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espGrossProfit" xlink:to="loc_espCostOfGoodsSold" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_espOperatingIncomeLoss" />
      <link:calculationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espOperatingIncomeLoss" xlink:to="loc_espGrossProfit" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="loc_espSellingGeneralAndAdministrativeExpense" />
      <link:calculationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espOperatingIncomeLoss" xlink:to="loc_espSellingGeneralAndAdministrativeExpense" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="loc_espNonoperatingIncomeExpense" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherNonoperatingIncome" xlink:label="loc_espOtherNonoperatingIncome" />
      <link:calculationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espNonoperatingIncomeExpense" xlink:to="loc_espOtherNonoperatingIncome" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentIncomeInterest" xlink:label="loc_espInvestmentIncomeInterest" />
      <link:calculationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espNonoperatingIncomeExpense" xlink:to="loc_espInvestmentIncomeInterest" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_espIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" />
      <link:calculationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="loc_espOperatingIncomeLoss" xlink:type="arc" weight="1" />
      <link:calculationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="loc_espNonoperatingIncomeExpense" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_espNetIncomeLoss" />
      <link:calculationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espNetIncomeLoss" xlink:to="loc_espIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_espIncomeTaxExpenseBenefit" />
      <link:calculationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espNetIncomeLoss" xlink:to="loc_espIncomeTaxExpenseBenefit" xlink:type="arc" weight="-1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://espry.com/role/StatementsOfCashFlows" xlink:title="0005 - Statement - Statements of Cash Flows (Unaudited)">
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_espNetCashProvidedByUsedInInvestingActivities" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_espPaymentsToAcquirePropertyPlantAndEquipment" />
      <link:calculationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_espPaymentsToAcquirePropertyPlantAndEquipment" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromCollectionOfLoansReceivable" xlink:label="loc_espProceedsFromCollectionOfLoansReceivable" />
      <link:calculationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_espProceedsFromCollectionOfLoansReceivable" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquireShortTermInvestments" xlink:label="loc_espPaymentsToAcquireShortTermInvestments" />
      <link:calculationArc order="300" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_espPaymentsToAcquireShortTermInvestments" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments" xlink:label="loc_espProceedsFromSaleMaturityAndCollectionOfShorttermInvestments" />
      <link:calculationArc order="400" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_espProceedsFromSaleMaturityAndCollectionOfShorttermInvestments" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_espNetCashProvidedByUsedInFinancingActivities" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromSaleOfTreasuryStock" xlink:label="loc_espProceedsFromSaleOfTreasuryStock" />
      <link:calculationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_espProceedsFromSaleOfTreasuryStock" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock" xlink:label="loc_espPaymentsOfDividendsCommonStock" />
      <link:calculationArc order="200" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_espPaymentsOfDividendsCommonStock" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:label="loc_espProceedsFromStockOptionsExercised" />
      <link:calculationArc order="300" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_espProceedsFromStockOptionsExercised" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:label="loc_espExcessTaxBenefitFromShareBasedCompensationFinancingActivities" />
      <link:calculationArc order="400" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_espExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForRepurchaseOfOtherEquity" xlink:label="loc_espPaymentsForRepurchaseOfOtherEquity" />
      <link:calculationArc order="500" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_espNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_espPaymentsForRepurchaseOfOtherEquity" xlink:type="arc" weight="-1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://espry.com/role/BasisOfPresentation" xlink:title="0006 - Disclosure - Basis of Presentation" />
    <link:calculationLink xlink:type="extended" xlink:role="http://espry.com/role/NetIncomePerShare" xlink:title="0007 - Disclosure - Net Income per Share" />
    <link:calculationLink xlink:type="extended" xlink:role="http://espry.com/role/StockBasedCompensation" xlink:title="0008 - Disclosure - Stock Based Compensation" />
    <link:calculationLink xlink:type="extended" xlink:role="http://espry.com/role/CommitmentsAndContingencies" xlink:title="0009 - Disclosure - Commitments and Contingencies" />
    <link:calculationLink xlink:type="extended" xlink:role="http://espry.com/role/RecentlyIssuedAccountingStandards" xlink:title="0010 - Disclosure - Recently Issued Accounting Standards" />
    <link:calculationLink xlink:type="extended" xlink:role="http://espry.com/role/EmployeeStockOwnershipPlan" xlink:title="0011 - Disclosure - Employee Stock Ownership Plan" />
</link:linkbase>
