Quarter	Billions of US Dollars
1993-07-01	0.1728
1993-10-01	0.1961
1994-01-01	0.1397
1994-04-01	0.2916
1994-07-01	0.2944
1994-10-01	0.2951
1995-01-01	0.2994
1995-04-01	0.3009
1995-07-01	0.3458
1995-10-01	0.3457
1996-01-01	0.3444
1996-04-01	0.3431
1996-07-01	0.5433
1996-10-01	0.8015
1997-01-01	1.0197
1997-04-01	1.2496
1997-07-01	1.2898
1997-10-01	1.2298
1998-01-01	1.2288
1998-04-01	1.2288
1998-07-01	1.1860
1998-10-01	1.1608
1999-01-01	1.1608
1999-04-01	1.0108
1999-07-01	1.0108
1999-10-01	1.6108
2000-01-01	1.5508
2000-04-01	1.5508
2000-07-01	1.5508
2000-10-01	2.2408
2001-01-01	2.1508
2001-04-01	2.1508
2001-07-01	2.1508
2001-10-01	2.1508
2002-01-01	2.0408
2002-04-01	2.0808
2002-07-01	2.0808
2002-10-01	2.0808
2003-01-01	2.0808
2003-04-01	2.0808
2003-07-01	2.3096
2003-10-01	2.1246
2004-01-01	2.1246
2004-04-01	1.9246
2004-07-01	1.8846
2004-10-01	1.5596
2005-01-01	1.5596
2005-04-01	1.5596
2005-07-01	1.5474
2005-10-01	1.2977
2006-01-01	1.2985
2006-04-01	1.3088
2006-07-01	1.2503
2006-10-01	1.3028
2007-01-01	2.7317
2007-04-01	4.7607
2007-07-01	5.1098
2007-10-01	5.4779
2008-01-01	6.2200
2008-04-01	6.3906
2008-07-01	7.0214
2008-10-01	8.5121
2009-01-01	6.9758
2009-04-01	7.5600
2009-07-01	7.5707
2009-10-01	7.7760
2010-01-01	7.5558
2010-04-01	7.8257
2010-07-01	8.3091
2010-10-01	8.3364
2011-01-01	9.7020
2011-04-01	12.9932
2011-07-01	13.5779
2011-10-01	14.8646
2012-01-01	15.0071
2012-04-01	16.1675
2012-07-01	16.2886
2012-10-01	18.9937
2013-01-01	22.9375
2013-04-01	27.3303
2013-07-01	27.8466
2013-10-01	30.9240
2014-01-01	32.1649
2014-04-01	35.2779
2014-07-01	39.9102
2014-10-01	41.4129
2015-01-01	42.0606
2015-04-01	45.0222