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        <ExclusionAmt>1801</ExclusionAmt>
      </InvestmentIncomeGrp>
      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>22704</TotalRevenueColumnAmt>
        <ExclusionAmt>22704</ExclusionAmt>
      </RoyaltiesRevenueGrp>
      <FundraisingGrossIncomeAmt>90901</FundraisingGrossIncomeAmt>
      <ContriRptFundraisingEventAmt>119772</ContriRptFundraisingEventAmt>
      <FundraisingDirectExpensesAmt>42557</FundraisingDirectExpensesAmt>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>48344</TotalRevenueColumnAmt>
        <ExclusionAmt>48344</ExclusionAmt>
      </NetIncmFromFundraisingEvtGrp>
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      <CostOfGoodsSoldAmt>1076529</CostOfGoodsSoldAmt>
      <NetIncomeOrLossGrp>
        <TotalRevenueColumnAmt>967437</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>967437</RelatedOrExemptFuncIncomeAmt>
      </NetIncomeOrLossGrp>
      <OtherRevenueMiscGrp>
        <Desc>OTHER INCOME</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>4610</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>4610</RelatedOrExemptFuncIncomeAmt>
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      <OtherRevenueTotalAmt>4610</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>6309495</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>3942032</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>72849</ExclusionAmt>
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      <CompCurrentOfcrDirectorsGrp>
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        <ManagementAndGeneralAmt>184068</ManagementAndGeneralAmt>
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        <TotalAmt>2182549</TotalAmt>
        <ProgramServicesAmt>1315880</ProgramServicesAmt>
        <ManagementAndGeneralAmt>676267</ManagementAndGeneralAmt>
        <FundraisingAmt>190402</FundraisingAmt>
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      <OtherEmployeeBenefitsGrp>
        <TotalAmt>251252</TotalAmt>
        <ProgramServicesAmt>178903</ProgramServicesAmt>
        <ManagementAndGeneralAmt>58240</ManagementAndGeneralAmt>
        <FundraisingAmt>14109</FundraisingAmt>
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      <PayrollTaxesGrp>
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        <ProgramServicesAmt>106518</ProgramServicesAmt>
        <ManagementAndGeneralAmt>51080</ManagementAndGeneralAmt>
        <FundraisingAmt>14225</FundraisingAmt>
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      <FeesForServicesLegalGrp>
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        <ManagementAndGeneralAmt>16300</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>193107</TotalAmt>
        <ProgramServicesAmt>63139</ProgramServicesAmt>
        <ManagementAndGeneralAmt>122743</ManagementAndGeneralAmt>
        <FundraisingAmt>7225</FundraisingAmt>
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      <AdvertisingGrp>
        <TotalAmt>117023</TotalAmt>
        <ProgramServicesAmt>111652</ProgramServicesAmt>
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        <FundraisingAmt>200</FundraisingAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
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        <ProgramServicesAmt>35628</ProgramServicesAmt>
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        <FundraisingAmt>1940</FundraisingAmt>
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      <OccupancyGrp>
        <TotalAmt>162539</TotalAmt>
        <ProgramServicesAmt>162539</ProgramServicesAmt>
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        <TotalAmt>61516</TotalAmt>
        <ProgramServicesAmt>54698</ProgramServicesAmt>
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        <FundraisingAmt>3279</FundraisingAmt>
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      <DepreciationDepletionGrp>
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        <ProgramServicesAmt>301793</ProgramServicesAmt>
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        <ProgramServicesAmt>10660</ProgramServicesAmt>
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        <FundraisingAmt>895</FundraisingAmt>
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        <Desc>TRAVEL PROGRAM</Desc>
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        <ProgramServicesAmt>527632</ProgramServicesAmt>
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      <OtherExpensesGrp>
        <Desc>COMMUNICATION</Desc>
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        <FundraisingAmt>11568</FundraisingAmt>
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      <OtherExpensesGrp>
        <Desc>BANK CARD FEES</Desc>
        <TotalAmt>129267</TotalAmt>
        <ProgramServicesAmt>121852</ProgramServicesAmt>
        <ManagementAndGeneralAmt>3112</ManagementAndGeneralAmt>
        <FundraisingAmt>4303</FundraisingAmt>
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      <OtherExpensesGrp>
        <Desc>PRINTING</Desc>
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        <ProgramServicesAmt>96903</ProgramServicesAmt>
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        <FundraisingAmt>17811</FundraisingAmt>
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      <AllOtherExpensesGrp>
        <TotalAmt>386838</TotalAmt>
        <ProgramServicesAmt>334122</ProgramServicesAmt>
        <ManagementAndGeneralAmt>55729</ManagementAndGeneralAmt>
        <FundraisingAmt>-3013</FundraisingAmt>
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      <TotalFunctionalExpensesGrp>
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        <ProgramServicesAmt>3462075</ProgramServicesAmt>
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      <CashNonInterestBearingGrp>
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        <EOYAmt>37298</EOYAmt>
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      <PledgesAndGrantsReceivableGrp>
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        <EOYAmt>58334</EOYAmt>
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      <AccountsReceivableGrp>
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        <EOYAmt>17041</EOYAmt>
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        <EOYAmt>325805</EOYAmt>
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      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>83331</BOYAmt>
        <EOYAmt>117933</EOYAmt>
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      <LandBldgEquipCostOrOtherBssAmt>10115392</LandBldgEquipCostOrOtherBssAmt>
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      <LandBldgEquipBasisNetGrp>
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        <EOYAmt>5621056</EOYAmt>
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        <EOYAmt>7322239</EOYAmt>
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      <AccountsPayableAccrExpnssGrp>
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        <EOYAmt>293840</EOYAmt>
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      <DeferredRevenueGrp>
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        <EOYAmt>383364</EOYAmt>
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      <TotalLiabilitiesGrp>
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        <EOYAmt>677204</EOYAmt>
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      <OrganizationFollowsSFAS117Ind>X</OrganizationFollowsSFAS117Ind>
      <UnrestrictedNetAssetsGrp>
        <BOYAmt>4499764</BOYAmt>
        <EOYAmt>6137165</EOYAmt>
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      <TemporarilyRstrNetAssetsGrp>
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        <EOYAmt>470572</EOYAmt>
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      <PermanentlyRstrNetAssetsGrp>
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        <EOYAmt>37298</EOYAmt>
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      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>5434097</BOYAmt>
        <EOYAmt>6645035</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>6192488</BOYAmt>
        <EOYAmt>7322239</EOYAmt>
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      <ReconcilationRevenueExpnssAmt>1210938</ReconcilationRevenueExpnssAmt>
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      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
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    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>945834</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>632196</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>751342</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1476426</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>2294614</CurrentTaxYearAmt>
        <TotalAmt>6100412</TotalAmt>
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      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>2706803</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>5331627</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>5245551</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>5350955</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>5104852</CurrentTaxYearAmt>
        <TotalAmt>23739788</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>3652637</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>5963823</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>5996893</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>6827381</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>7399466</CurrentTaxYearAmt>
        <TotalAmt>29840200</TotalAmt>
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      <AmountsRcvdDsqlfyPersonGrp>
        <CurrentTaxYearMinus4YearsAmt>24250</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>15950</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>133275</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>501186</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>171133</CurrentTaxYearAmt>
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      <SubstantialContributorsAmtGrp>
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        <CurrentTaxYearMinus2YearsAmt>42000</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearAmt>1675714</CurrentTaxYearAmt>
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        <CurrentTaxYearMinus1YearAmt>463</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>24505</CurrentTaxYearAmt>
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      <InvestmentIncomeAndUBTIGrp>
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        <CurrentTaxYearAmt>24505</CurrentTaxYearAmt>
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        <CurrentTaxYearMinus2YearsAmt>8014</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>4575</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>4610</CurrentTaxYearAmt>
        <TotalAmt>30618</TotalAmt>
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      <TotalSupportCalendarYearGrp>
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        <CurrentTaxYearMinus3YearsAmt>5968753</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>6007823</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>6832419</CurrentTaxYearMinus1YearAmt>
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      <PublicSupportCY509Pct>0.91020</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.96650</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.00110</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.00030</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
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    <IRS990ScheduleB documentId="RetDoc1234500001" />
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <CollectionUsedPubExhibitionInd>X</CollectionUsedPubExhibitionInd>
      <CollUsedScholarlyRsrchInd>X</CollUsedScholarlyRsrchInd>
      <CollectionUsedPreservationInd>X</CollectionUsedPreservationInd>
      <CollUsedLoanOrExchProgInd>X</CollUsedLoanOrExchProgInd>
      <SolicitedAssetsSaleInd>0</SolicitedAssetsSaleInd>
      <CYEndwmtFundGrp>
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        <EndYearBalanceAmt>37298</EndYearBalanceAmt>
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        <EndYearBalanceAmt>37298</EndYearBalanceAmt>
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      <CYMinus3YrEndwmtFundGrp>
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        <EndYearBalanceAmt>37298</EndYearBalanceAmt>
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      <LeaseholdImprovementsGrp>
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      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III, LINE 1A:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION CHARGES COLLECTION ITEMS TO EXPENSE TO REFLECT THE UNCERTAINTY IN DETERMINING THE VALUE OF THESE ITEMS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>COLLECTIONS INCLUDE PIECES OF FURNITURE AND ART DESIGNED AND/OR OWNED BY FRANK LLOYD WRIGHT, AS WELL AS PERIOD PIECES FROM THE TIME THAT HE PRACTICED ARCHITECTURE IN THE CHICAGO AREA. THESE ITEMS PROVIDE ADDITIONAL INSIGHT INTO THE ARCHITECT AND HIS WORK.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XI, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
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      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
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        <GrossRevenueEvent1Amt>74628</GrossRevenueEvent1Amt>
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        <Event2Nm>WRIGHT NIGHT RECEPTION</Event2Nm>
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        <CharitableContriEvent2Amt>119772</CharitableContriEvent2Amt>
        <GrossRevenueEvent2Amt>16273</GrossRevenueEvent2Amt>
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        <EntertainmentEvent2Amt>4415</EntertainmentEvent2Amt>
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        <GrossReceiptsTotalAmt>210673</GrossReceiptsTotalAmt>
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        <NetIncomeSummaryAmt>48344</NetIncomeSummaryAmt>
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      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
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      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
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      <CompBsdNetEarnsRltdOrgsInd>0</CompBsdNetEarnsRltdOrgsInd>
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      <InitialContractExceptionInd>0</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
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        <TitleTxt>PRESIDENT AND CEO</TitleTxt>
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        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>184068</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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        <FormAndLineReferenceDesc>PART I, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>EXECUTIVE COMPENSATION IS REVIEWED AND APPROVED BY THE EXECUTIVE COMMITTEE OF THE BOARD.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS DONATE ANNUALLY AND ARE ENTITLED TO CERTAIN BENEFITS, SUCH AS FREE ADMISSION TO REGULAR DAILY TOURS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS IN ATTENDANCE AT THE ANNUAL MEETING VOTE TO APPROVE ADDITIONS TO THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>A COMPLETE COPY OF FORM 990 WAS GIVEN TO MEMBERS OF THE FINANCE COMMITTEE FOR REVIEW. A COMPLETE COPY OF THE FORM WAS THEN MADE AVAILABLE TO ALL MEMBERS OF THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>BOARD MEMBERS ARE REQUIRED ANNUALLY TO COMPLETE A CONFLICT OF INTEREST FORM AND FILE WITH THE SECRETARY OF THE BOARD.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>ON AN ANNUAL BASIS, THE SALARY OF THE PRESIDENT IS REVIEWED AND APPROVED BY THE EXECUTIVE COMMITTEE OF THE BOARD.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>COPIES OF GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY AND FINANCIAL STATEMENTS ARE AVAILABLE UPON WRITTEN REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FINANCE COMMITTEE IS RESPONSIBLE FOR THE HIRING OF AUDITORS AND OVERSIGHT OF THE AUDIT PROCESS. THIS PROCESS HAS NOT CHANGED FROM THE PRIOR YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>