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        <CurrentTaxYearMinus4YearsAmt>0</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>0</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>0</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>0</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>0</CurrentTaxYearAmt>
        <TotalAmt>0</TotalAmt>
      </OtherIncome509Grp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>99993</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>44</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1010</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>31407</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>89462</CurrentTaxYearAmt>
        <TotalAmt>221916</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.99954</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.99887</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.00046</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.00113</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleO documentId="R000003" softwareId="22015720" softwareVersionNum="v1.00">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990-EZ, Part I, Line 10</FormAndLineReferenceDesc>
        <ExplanationTxt>$2000 to Jeff Raab for exceptional service award. $500 to Chloe Gunderson for best student paper award. $300 to Ali Ghavami for runner up student paper award.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990-EZ, Part I, Line 20</FormAndLineReferenceDesc>
        <ExplanationTxt>Unrealized capital loss in Vanguard investment funds</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>