Quarter	US Dollars, sum over component sub-periods
2005-01-01	481672955546.1540
2005-04-01	499818990107.3430
2005-07-01	539464338203.4780
2005-10-01	510577870891.6480
2006-01-01	504966922593.4280
2006-04-01	552824698929.0200
2006-07-01	604381402683.8660
2006-10-01	593218936288.5580
2007-01-01	587404694157.0099
2007-04-01	644608957469.3330
2007-07-01	716636816633.8490
2007-10-01	720248287726.0950
2008-01-01	707310902645.3090
2008-04-01	774704620698.7720
2008-07-01	799574785501.2590
2008-10-01	685111566996.6160
2009-01-01	595202356304.6800
2009-04-01	636845207457.7190
2009-07-01	708993655184.9519
2009-10-01	702782596052.7400
2010-01-01	651096536716.7840
2010-04-01	675244089390.9160
2010-07-01	737251986534.4960
2010-10-01	742748962287.6640
2011-01-01	713502531969.9010
2011-04-01	795707062940.1760
2011-07-01	849596747589.6400
2011-10-01	789763890049.3569
2012-01-01	751589327865.9650
2012-04-01	791624529924.7320
2012-07-01	829681004705.5590
2012-10-01	819573492217.4769
2013-01-01	790474640473.5040
2013-04-01	841554620343.7600
2013-07-01	893532914727.0350
2013-10-01	884515846302.8560
2014-01-01	851291732339.1880
2014-04-01	929567134308.6620
2014-07-01	966654330499.8561
2014-10-01	910397440307.9801
2015-01-01	825513004635.0200
2015-04-01	860879330024.7689
2015-07-01	903743917548.7050
2015-10-01	880421694813.2890
2016-01-01	820879059574.3130
2016-04-01	878335274314.3290
2016-07-01	924203361969.2730
2016-10-01	893287670368.4260
2017-01-01	844423637928.7280
2017-04-01	908802054145.6340
2017-07-01	1008230112270.3700
2017-10-01	1001081068055.9000
2018-01-01	965308247170.4220
2018-04-01	992657879240.6350
