Quarter	Billions of US Dollars
1996-10-01	37.054
1997-01-01	38.945
1997-04-01	41.988
1997-07-01	41.001
1997-10-01	43.509
1998-01-01	43.532
1998-04-01	45.500
1998-07-01	41.881
1998-10-01	42.623
1999-01-01	44.083
1999-04-01	40.182
1999-07-01	35.406
1999-10-01	38.892
2000-01-01	37.341
2000-04-01	34.845
2000-07-01	34.492
2000-10-01	34.798
2001-01-01	34.041
2001-04-01	34.877
2001-07-01	35.071
2001-10-01	36.261
2002-01-01	37.170
2002-04-01	36.764
2002-07-01	32.055
2002-10-01	32.569
2003-01-01	31.450
2003-04-01	33.024
2003-07-01	32.237
2003-10-01	33.629
2004-01-01	34.410
2004-04-01	33.976
2004-07-01	35.049
2004-10-01	37.765
2005-01-01	37.685
2005-04-01	38.542
2005-07-01	39.031
2005-10-01	39.507
2006-01-01	40.108
2006-04-01	36.744
2006-07-01	41.879
2006-10-01	46.870
2007-01-01	49.634
2007-04-01	56.128
2007-07-01	56.153
2007-10-01	57.347
2008-01-01	64.435
2008-04-01	63.072
2008-07-01	57.726
2008-10-01	57.706
2009-01-01	51.199
2009-04-01	62.606
2009-07-01	70.702
2009-10-01	67.980
2010-01-01	73.382
2010-04-01	76.813
2010-07-01	85.967
2010-10-01	85.760
2011-01-01	89.536
2011-04-01	97.935
2011-07-01	94.374
2011-10-01	96.252
2012-01-01	104.359
2012-04-01	104.281
2012-07-01	105.326
2012-10-01	109.410
2013-01-01	108.509
2013-04-01	108.994
2013-07-01	113.904
2013-10-01	117.357
2014-01-01	120.643
2014-04-01	133.823
2014-07-01	129.196
2014-10-01	115.954
2015-01-01	111.283
2015-04-01	116.084
2015-07-01	100.686
2015-10-01	103.642
2016-01-01	108.233
2016-04-01	112.974
2016-07-01	114.637
2016-10-01	109.830
2017-01-01	115.763
2017-04-01	112.352
2017-07-01	117.236
2017-10-01	117.258
2018-01-01	126.986