Quarter	Billions of US Dollars
1994-10-01	35.104
1995-01-01	37.489
1995-04-01	38.967
1995-07-01	39.025
1995-10-01	39.783
1996-01-01	39.958
1996-04-01	41.361
1996-07-01	42.254
1996-10-01	41.805
1997-01-01	40.049
1997-04-01	40.799
1997-07-01	40.563
1997-10-01	40.641
1998-01-01	39.349
1998-04-01	42.465
1998-07-01	44.959
1998-10-01	47.839
1999-01-01	47.425
1999-04-01	45.830
1999-07-01	48.070
1999-10-01	46.539
2000-01-01	46.435
2000-04-01	49.400
2000-07-01	47.550
2000-10-01	52.261
2001-01-01	52.241
2001-04-01	52.168
2001-07-01	57.566
2001-10-01	57.873
2002-01-01	57.618
2002-04-01	68.267
2002-07-01	67.501
2002-10-01	73.704
2003-01-01	77.760
2003-04-01	82.555
2003-07-01	88.250
2003-10-01	98.836
2004-01-01	96.744
2004-04-01	100.822
2004-07-01	104.682
2004-10-01	117.625
2005-01-01	115.434
2005-04-01	111.279
2005-07-01	111.928
2005-10-01	116.156
2006-01-01	118.675
2006-04-01	129.903
2006-07-01	134.835
2006-10-01	147.058
2007-01-01	148.813
2007-04-01	157.265
2007-07-01	171.120
2007-10-01	187.472
2008-01-01	213.890
2008-04-01	222.847
2008-07-01	211.085
2008-10-01	209.958
2009-01-01	199.971
2009-04-01	210.200
2009-07-01	220.201
2009-10-01	217.845
2010-01-01	205.829
2010-04-01	187.390
2010-07-01	202.026
2010-10-01	202.408
2011-01-01	213.016
2011-04-01	216.909
2011-07-01	202.956
2011-10-01	178.162
2012-01-01	179.064
2012-04-01	169.207
2012-07-01	168.248
2012-10-01	168.812
2013-01-01	160.336
2013-04-01	161.105
2013-07-01	163.477
2013-10-01	162.527
2014-01-01	160.549
2014-04-01	160.701
2014-07-01	148.914
2014-10-01	143.322
2015-01-01	127.128
2015-04-01	130.734
2015-07-01	128.571
2015-10-01	125.201
2016-01-01	130.872
2016-04-01	126.971
2016-07-01	126.069
2016-10-01	119.579
2017-01-01	120.841
2017-04-01	127.778
2017-07-01	130.189
2017-10-01	131.459
2018-01-01	132.740