Quarter	US Dollars, sum over component sub-periods
2003-01-01	2767543801.37719000
2003-04-01	6258762401.16586000
2003-07-01	1498249496.48371980
2003-10-01	265348205.17127200
2004-01-01	1228897285.08198000
2004-04-01	6732505357.40107000
2004-07-01	74583313.28295231
2004-10-01	1792836785.32843020
2005-01-01	444245556.17096800
2005-04-01	10178836595.83930000
2005-07-01	-2712169989.97666000
2005-10-01	1329703799.36976000
2006-01-01	-1621506029.29472020
2006-04-01	7230859666.05141100
2006-07-01	-2329868136.58944000
2006-10-01	4406312073.88838000
2007-01-01	2517341390.74112000
2007-04-01	10703744868.75560000
2007-07-01	-1825834691.75941000
2007-10-01	-3916839217.03639000
2008-01-01	1737920637.42918010
2008-04-01	7083933447.50233900
2008-07-01	-10447083019.28910000
2008-10-01	-7969537398.24941100
2009-01-01	-6085053786.96930000
2009-04-01	1346842825.89055010
2009-07-01	-8360826743.45850000
2009-10-01	-4503881106.38462000
2010-01-01	-1808585294.49557000
2010-04-01	7875714761.14120000
2010-07-01	-392872527.90287800
2010-10-01	894474150.10998000
2011-01-01	-880493216.45269500
2011-04-01	4654687061.90224000
2011-07-01	-7534240862.18489000
2011-10-01	-5579283816.61179000
2012-01-01	-697670589.86050400
2012-04-01	8643059805.97440100
2012-07-01	-4457301215.18411100
2012-10-01	-1177107848.91070990
2013-01-01	-4360929971.48425000
2013-04-01	830622269.82455400
2013-07-01	30465945.92618500
2013-10-01	3363311940.03019000
2014-01-01	-1038833249.66078000
2014-04-01	1055868463.73325010
2014-07-01	-5011994654.26746000
2014-10-01	659283459.20558690
2015-01-01	-3658621077.48489000
2015-04-01	1920098872.04917000
2015-07-01	279036053.85091203
2015-10-01	-843684874.77712100
2016-01-01	3044094029.90229000
2016-04-01	764480190.79309600
2016-07-01	-3859801727.87727980
2016-10-01	-1514977937.64925000
2017-01-01	-905723534.24450290
2017-04-01	404717917.63410000
2017-07-01	-1307208036.85517000
2017-10-01	-2730663222.49294000
2018-01-01	-448540330.42281600
2018-04-01	-518175214.63744503