Quarter	Billions of US Dollars
1999-10-01	290.223
2000-01-01	284.697
2000-04-01	287.550
2000-07-01	271.619
2000-10-01	290.469
2001-01-01	279.630
2001-04-01	271.419
2001-07-01	299.525
2001-10-01	285.804
2002-01-01	288.028
2002-04-01	331.419
2002-07-01	330.986
2002-10-01	358.406
2003-01-01	370.580
2003-04-01	375.907
2003-07-01	389.877
2003-10-01	425.069
2004-01-01	416.608
2004-04-01	427.562
2004-07-01	432.084
2004-10-01	477.947
2005-01-01	462.248
2005-04-01	436.111
2005-07-01	438.473
2005-10-01	431.288
2006-01-01	440.663
2006-04-01	468.688
2006-07-01	473.044
2006-10-01	486.826
2007-01-01	490.206
2007-04-01	489.959
2007-07-01	513.656
2007-10-01	543.572
2008-01-01	615.861
2008-04-01	606.777
2008-07-01	567.255
2008-10-01	583.779
2009-01-01	553.151
2009-04-01	590.056
2009-07-01	622.747
2009-10-01	627.923
2010-01-01	622.892
2010-04-01	608.201
2010-07-01	684.526
2010-10-01	724.895
2011-01-01	748.289
2011-04-01	834.261
2011-07-01	779.991
2011-10-01	753.312
2012-01-01	792.148
2012-04-01	752.070
2012-07-01	773.862
2012-10-01	803.408
2013-01-01	777.091
2013-04-01	787.702
2013-07-01	825.976
2013-10-01	854.038
2014-01-01	867.720
2014-04-01	873.367
2014-07-01	817.283
2014-10-01	795.670
2015-01-01	817.462
2015-04-01	860.420
2015-07-01	834.417
2015-10-01	813.037
2016-01-01	852.199
2016-04-01	844.053
2016-07-01	853.009
2016-10-01	817.209
2017-01-01	836.563
2017-04-01	878.594
2017-07-01	873.064
2017-10-01	875.163
2018-01-01	902.924