Quarter	Billions of US Dollars
1998-01-01	792.749
1998-04-01	812.062
1998-07-01	810.037
1998-10-01	851.469
1999-01-01	649.820
1999-04-01	625.322
1999-07-01	605.595
1999-10-01	651.718
2000-01-01	659.664
2000-04-01	690.398
2000-07-01	700.074
2000-10-01	689.145
2001-01-01	660.092
2001-04-01	631.892
2001-07-01	587.372
2001-10-01	676.518
2002-01-01	693.874
2002-04-01	615.606
2002-07-01	508.154
2002-10-01	554.600
2003-01-01	597.691
2003-04-01	695.098
2003-07-01	710.414
2003-10-01	724.901
2004-01-01	739.462
2004-04-01	706.672
2004-07-01	778.127
2004-10-01	851.509
2005-01-01	880.324
2005-04-01	1012.972
2005-07-01	1099.025
2005-10-01	1082.163
2006-01-01	1187.138
2006-04-01	1193.363
2006-07-01	1254.025
2006-10-01	1323.906
2007-01-01	1407.338
2007-04-01	1524.984
2007-07-01	1613.969
2007-10-01	1752.653
2008-01-01	1832.850
2008-04-01	2102.762
2008-07-01	1795.766
2008-10-01	1601.845
2009-01-01	1607.678
2009-04-01	1960.690
2009-07-01	2230.884
2009-10-01	2406.561
2010-01-01	2394.717
2010-04-01	2494.444
2010-07-01	2750.358
2010-10-01	2959.496
2011-01-01	3063.576
2011-04-01	3307.902
2011-07-01	2842.470
2011-10-01	2944.354
2012-01-01	3083.312
2012-04-01	2886.063
2012-07-01	2933.330
2012-10-01	3049.207
2013-01-01	3140.559
2013-04-01	2946.256
2013-07-01	2964.936
2013-10-01	2977.409
2014-01-01	3112.766
2014-04-01	3321.566
2014-07-01	3011.701
2014-10-01	2900.710
2015-01-01	2454.400
2015-04-01	2654.524
2015-07-01	2159.428
2015-10-01	2248.244
2016-01-01	2467.190
2016-04-01	2785.133
2016-07-01	2789.203
2016-10-01	2867.839
2017-01-01	3008.220
2017-04-01	2905.605
2017-07-01	3080.679
2017-10-01	3003.422
2018-01-01	3043.687