Quarter	Billions of US Dollars
1995-10-01	52.605
1996-01-01	50.804
1996-04-01	49.473
1996-07-01	51.031
1996-10-01	53.528
1997-01-01	54.508
1997-04-01	49.879
1997-07-01	51.231
1997-10-01	51.486
1998-01-01	51.915
1998-04-01	51.626
1998-07-01	53.197
1998-10-01	51.946
1999-01-01	51.347
1999-04-01	48.011
1999-07-01	48.367
1999-10-01	47.040
2000-01-01	44.819
2000-04-01	44.033
2000-07-01	42.086
2000-10-01	46.013
2001-01-01	45.731
2001-04-01	43.403
2001-07-01	45.734
2001-10-01	45.784
2002-01-01	47.637
2002-04-01	58.232
2002-07-01	60.495
2002-10-01	66.213
2003-01-01	66.457
2003-04-01	70.395
2003-07-01	72.781
2003-10-01	78.900
2004-01-01	78.008
2004-04-01	78.646
2004-07-01	83.224
2004-10-01	90.810
2005-01-01	87.447
2005-04-01	86.575
2005-07-01	88.367
2005-10-01	87.477
2006-01-01	92.691
2006-04-01	98.752
2006-07-01	100.464
2006-10-01	110.909
2007-01-01	106.078
2007-04-01	111.127
2007-07-01	124.989
2007-10-01	127.276
2008-01-01	135.451
2008-04-01	140.177
2008-07-01	124.804
2008-10-01	114.108
2009-01-01	133.515
2009-04-01	147.444
2009-07-01	177.682
2009-10-01	183.233
2010-01-01	179.249
2010-04-01	168.207
2010-07-01	191.504
2010-10-01	193.308
2011-01-01	209.017
2011-04-01	210.155
2011-07-01	199.206
2011-10-01	201.677
2012-01-01	218.303
2012-04-01	212.620
2012-07-01	229.993
2012-10-01	242.388
2013-01-01	243.251
2013-04-01	232.159
2013-07-01	237.126
2013-10-01	236.297
2014-01-01	251.131
2014-04-01	242.715
2014-07-01	232.427
2014-10-01	205.251
2015-01-01	189.225