Quarter	Billions of US Dollars
1993-07-01	44.82
1993-10-01	42.60
1994-01-01	45.54
1994-04-01	49.18
1994-07-01	55.94
1994-10-01	57.23
1995-01-01	66.91
1995-04-01	68.06
1995-07-01	70.44
1995-10-01	72.60
1996-01-01	75.27
1996-04-01	80.58
1996-07-01	87.50
1996-10-01	91.22
1997-01-01	90.36
1997-04-01	96.61
1997-07-01	102.70
1997-10-01	109.36
1998-01-01	112.15
1998-04-01	129.31
1998-07-01	148.07
1998-10-01	155.36
1999-01-01	170.94
1999-04-01	211.60
1999-07-01	253.63
1999-10-01	276.78
2000-01-01	290.95
2000-04-01	332.98
2000-07-01	337.02
2000-10-01	396.11
2001-01-01	418.94
2001-04-01	445.54
2001-07-01	515.53
2001-10-01	563.95
2002-01-01	590.71
2002-04-01	706.65
2002-07-01	720.85
2002-10-01	807.49
2003-01-01	885.63
2003-04-01	980.40
2003-07-01	1041.80
2003-10-01	1227.09
2004-01-01	1251.33
2004-04-01	1319.40
2004-07-01	1444.52
2004-10-01	1705.48
2005-01-01	1690.49
2005-04-01	1729.66
2005-07-01	1736.28
2005-10-01	1849.92
2006-01-01	2016.35
2006-04-01	2245.51
2006-07-01	2381.81
2006-10-01	2703.59
2007-01-01	2949.16
2007-04-01	3230.34
2007-07-01	3403.48
2007-10-01	3591.17
2008-01-01	3895.79
2008-04-01	4026.99
2008-07-01	3685.84
2008-10-01	3809.01
2009-01-01	3642.79
2009-04-01	3906.96
2009-07-01	4062.86
2009-10-01	3981.87
2010-01-01	3731.47
2010-04-01	3358.03
2010-07-01	3772.24
2010-10-01	3665.65
2011-01-01	3863.35
2011-04-01	3930.63
2011-07-01	3649.21
2011-10-01	3515.12
2012-01-01	3573.53
2012-04-01	3283.08
2012-07-01	3263.37
2012-10-01	3279.30
2013-01-01	3106.06
2013-04-01	3125.31
2013-07-01	3199.00
2013-10-01	3239.29
2014-01-01	3188.69
2014-04-01	3146.89
2014-07-01	2879.34
2014-10-01	2788.38
2015-01-01	2461.07
2015-04-01	2555.41