Quarter	US Dollars, sum over component sub-periods
1999-01-01	1070267298971.7802
1999-04-01	1100011279508.2400
1999-07-01	1148452712292.0900
1999-10-01	1195317226572.0600
2000-01-01	1198093971663.4402
2000-04-01	1249087659660.0900
2000-07-01	1255451821763.1199
2000-10-01	1280821768585.6800
2001-01-01	1238034708543.2100
2001-04-01	1215769842378.0300
2001-07-01	1168107800739.8699
2001-10-01	1124338967080.1200
2002-01-01	1094183902257.6199
2002-04-01	1221398895510.6700
2002-07-01	1251763102348.8100
2002-10-01	1283759148571.6902
2003-01-01	1306204273798.2200
2003-04-01	1380541778554.5898
2003-07-01	1371252876629.3700
2003-10-01	1454605942516.3800
2004-01-01	1508911281067.2500
2004-04-01	1594806813054.3398
2004-07-01	1623359498249.6300
2004-10-01	1746955822122.1100
2005-01-01	1748528479955.5000
2005-04-01	1845419606917.7400
2005-07-01	1852989789113.6800
2005-10-01	1917225955896.4000
2006-01-01	1969973318104.8398
2006-04-01	2149409660654.6199
2006-07-01	2158264372344.2800
2006-10-01	2208171750338.0503
2007-01-01	2230109983701.8696
2007-04-01	2399823536364.8900
2007-07-01	2435952242028.9897
2007-10-01	2559941127025.8100
2008-01-01	2576117870304.5100
2008-04-01	2754560310364.7695
2008-07-01	2650882862302.6600
2008-10-01	2263163134071.1100
2009-01-01	1852533627069.7600
2009-04-01	1904289096515.2200
2009-07-01	1984350240830.7500
2009-10-01	2099982373516.8599
2010-01-01	2079167255548.4700
2010-04-01	2178788908077.2400
2010-07-01	2232387848472.8100
2010-10-01	2341812727661.0000
2011-01-01	2400532308016.9200
2011-04-01	2616062653254.5800
2011-07-01	2574277732351.3200
2011-10-01	2501176943093.8296
2012-01-01	2488128868045.2500
2012-04-01	2544542833328.5600
2012-07-01	2464660012587.9200
2012-10-01	2485953642515.5600
2013-01-01	2455463061738.6500
2013-04-01	2539222145871.4500
2013-07-01	2540618076774.6500
2013-10-01	2572215599919.9000
2014-01-01	2564996918280.3200
2014-04-01	2695589010802.5600
2014-07-01	2615967347419.2803
2014-10-01	2556476769122.2803
2015-01-01	2344669213293.9000
2015-04-01	2430849463438.5996
2015-07-01	2377847541109.3200
2015-10-01	2350749332372.0000
2016-01-01	2250549940077.4800
2016-04-01	2413630826288.8200
2016-07-01	2379160966478.7300
2016-10-01	2380226158392.9400
2017-01-01	2362016781035.8496
2017-04-01	2541269776080.3700
2017-07-01	2561546697776.7896
2017-10-01	2654376299907.5600
2018-01-01	2679692903951.1800