Quarter	Billions of US Dollars
1995-10-01	42.542
1996-01-01	43.787
1996-04-01	45.612
1996-07-01	48.212
1996-10-01	49.423
1997-01-01	50.534
1997-04-01	47.469
1997-07-01	47.875
1997-10-01	47.300
1998-01-01	47.800
1998-04-01	48.419
1998-07-01	51.882
1998-10-01	50.795
1999-01-01	43.620
1999-04-01	44.235
1999-07-01	46.889
1999-10-01	43.375
2000-01-01	40.415
2000-04-01	41.128
2000-07-01	38.451
2000-10-01	41.033
2001-01-01	39.833
2001-04-01	39.430
2001-07-01	39.920
2001-10-01	40.585
2002-01-01	41.463
2002-04-01	50.170
2002-07-01	48.390
2002-10-01	50.073
2003-01-01	50.267
2003-04-01	51.772
2003-07-01	51.054
2003-10-01	53.435
2004-01-01	51.239
2004-04-01	52.289
2004-07-01	54.405
2004-10-01	61.581
2005-01-01	60.539
2005-04-01	57.843
2005-07-01	58.952
2005-10-01	58.200
2006-01-01	63.818
2006-04-01	67.904
2006-07-01	67.531
2006-10-01	76.626
2007-01-01	76.486
2007-04-01	76.622
2007-07-01	85.959
2007-10-01	98.046
2008-01-01	112.853
2008-04-01	123.592
2008-07-01	113.891
2008-10-01	104.957
2009-01-01	96.086
2009-04-01	109.040
2009-07-01	116.365
2009-10-01	111.885
2010-01-01	109.062
2010-04-01	101.001
2010-07-01	117.873
2010-10-01	112.631
2011-01-01	121.361
2011-04-01	128.655
2011-07-01	118.150
2011-10-01	112.410
2012-01-01	121.685
2012-04-01	112.066
2012-07-01	119.829
2012-10-01	126.715
2013-01-01	123.395
2013-04-01	130.066
2013-07-01	138.356
2013-10-01	136.127
2014-01-01	134.586
2014-04-01	134.055
2014-07-01	123.941
2014-10-01	118.916
2015-01-01	108.148
2015-04-01	113.174
2015-07-01	113.402
2015-10-01	109.600
2016-01-01	113.854
2016-04-01	112.562
2016-07-01	115.125
2016-10-01	108.785
2017-01-01	110.942
2017-04-01	122.274
2017-07-01	127.949
2017-10-01	134.393
2018-01-01	140.006