Quarter	US Dollars, sum over component sub-periods
2004-01-01	339960046.2977050
2004-04-01	426146624.8356350
2004-07-01	430643015.5491820
2004-10-01	471394665.4040450
2005-01-01	455458606.3883340
2005-04-01	511613132.0482000
2005-07-01	557135556.0128840
2005-10-01	550196277.4738619
2006-01-01	532260735.0330979
2006-04-01	609819453.0883390
2006-07-01	688263661.7019911
2006-10-01	732078837.3379960
2007-01-01	638200230.4354160
2007-04-01	928195230.2943430
2007-07-01	925820701.6535000
2007-10-01	932429798.4628880
2008-01-01	921544022.7106320
2008-04-01	1300311117.6880400
2008-07-01	1223782935.2063500
2008-10-01	794770918.3879370
2009-01-01	610801574.7742931
2009-04-01	847989427.0729829
2009-07-01	875361773.0794430
2009-10-01	761471035.8239020
2010-01-01	668529593.0187350
2010-04-01	790101481.8183510
2010-07-01	764444749.1837810
2010-10-01	821238574.2906290
2011-01-01	838782149.8418590
2011-04-01	985307356.4916470
2011-07-01	1044124453.9590000
2011-10-01	984573618.4090021
2012-01-01	978298432.0159970
2012-04-01	1002550144.2613500
2012-07-01	1183563530.8211298
2012-10-01	1206627607.0404900
2013-01-01	1213548003.4334600
2013-04-01	1256319265.9985200
2013-07-01	1389904851.9962700
2013-10-01	1500010311.0398500
2014-01-01	1286192423.6264198
2014-04-01	1485185130.8250500
2014-07-01	1473710581.7890399
2014-10-01	1350250113.1823301
2015-01-01	1072977875.0135199
2015-04-01	1214716927.5506900
2015-07-01	1264022206.9703700
2015-10-01	1179878524.6834400
2016-01-01	1102640953.3512100
2016-04-01	1336982128.6515800
2016-07-01	1345909180.1327500
2016-10-01	1304960619.1377199
2017-01-01	1231506961.7267600
2017-04-01	1492287343.5807400
2017-07-01	1565525499.2324700
2017-10-01	1692928771.7164000
2018-01-01	1558315129.3220900
2018-04-01	1742295664.7934800