Quarter	Billions of US Dollars
1993-07-01	6.7664
1993-10-01	7.1070
1994-01-01	7.2767
1994-04-01	6.6291
1994-07-01	6.6119
1994-10-01	6.5742
1995-01-01	7.1119
1995-04-01	6.9778
1995-07-01	7.1720
1995-10-01	7.8371
1996-01-01	7.8846
1996-04-01	7.1426
1996-07-01	6.7310
1996-10-01	7.7032
1997-01-01	7.6399
1997-04-01	7.6153
1997-07-01	7.6526
1997-10-01	7.3872
1998-01-01	7.8343
1998-04-01	8.9100
1998-07-01	8.5914
1998-10-01	8.3431
1999-01-01	8.8738
1999-04-01	8.6518
1999-07-01	8.7884
1999-10-01	8.3040
2000-01-01	8.0147
2000-04-01	8.7133
2000-07-01	8.7353
2000-10-01	9.0374
2001-01-01	8.6072
2001-04-01	10.1474
2001-07-01	10.3131
2001-10-01	9.9203
2002-01-01	9.8083
2002-04-01	10.7163
2002-07-01	10.9906
2002-10-01	11.2399
2003-01-01	11.2412
2003-04-01	11.7815
2003-07-01	11.9841
2003-10-01	12.1242
2004-01-01	12.3565
2004-04-01	12.1535
2004-07-01	13.1159
2004-10-01	14.0433
2005-01-01	13.2335
2005-04-01	12.9225
2005-07-01	12.9738
2005-10-01	12.4804
2006-01-01	12.1451
2006-04-01	12.9622
2006-07-01	13.1557
2006-10-01	13.7802
2007-01-01	15.7179
2007-04-01	16.7427
2007-07-01	16.5437
2007-10-01	17.3064
2008-01-01	19.1176
2008-04-01	19.2089
2008-07-01	19.4396
2008-10-01	19.0432
2009-01-01	18.3885
2009-04-01	19.1183
2009-07-01	20.0439
2009-10-01	20.9022
2010-01-01	22.2563
2010-04-01	20.4905
2010-07-01	24.2321
2010-10-01	27.0879
2011-01-01	29.3735
2011-04-01	32.4372
2011-07-01	32.4169
2011-10-01	34.4979
2012-01-01	37.1560
2012-04-01	36.5739
2012-07-01	40.3431
2012-10-01	42.2724
2013-01-01	46.4022
2013-04-01	45.5510
2013-07-01	47.9735
2013-10-01	49.1432
2014-01-01	50.3921
2014-04-01	51.4069
2014-07-01	52.7500
2014-10-01	54.0684
2015-01-01	56.5033
2015-04-01	62.6951