Quarter	Billions of US Dollars
1993-07-01	542.07
1993-10-01	548.85
1994-01-01	587.73
1994-04-01	619.68
1994-07-01	665.38
1994-10-01	692.83
1995-01-01	769.34
1995-04-01	801.57
1995-07-01	812.04
1995-10-01	843.35
1996-01-01	876.25
1996-04-01	915.85
1996-07-01	959.40
1996-10-01	1011.87
1997-01-01	1033.12
1997-04-01	1093.62
1997-07-01	1136.73
1997-10-01	1139.67
1998-01-01	1193.52
1998-04-01	1265.16
1998-07-01	1349.56
1998-10-01	1393.50
1999-01-01	1425.88
1999-04-01	1504.49
1999-07-01	1664.58
1999-10-01	1678.90
2000-01-01	1728.15
2000-04-01	1810.87
2000-07-01	1857.41
2000-10-01	2010.16
2001-01-01	2136.99
2001-04-01	2274.09
2001-07-01	2450.91
2001-10-01	2534.92
2002-01-01	2670.66
2002-04-01	3013.96
2002-07-01	3069.58
2002-10-01	3252.77
2003-01-01	3411.09
2003-04-01	3642.89
2003-07-01	3858.43
2003-10-01	4200.95
2004-01-01	4347.86
2004-04-01	4424.72
2004-07-01	4616.78
2004-10-01	5028.79
2005-01-01	5096.71
2005-04-01	5061.41
2005-07-01	5194.14
2005-10-01	5304.95
2006-01-01	5573.12
2006-04-01	5944.34
2006-07-01	6137.66
2006-10-01	6549.04
2007-01-01	6829.56
2007-04-01	7233.84
2007-07-01	7630.11
2007-10-01	7940.98
2008-01-01	8352.47
2008-04-01	8695.09
2008-07-01	8219.53
2008-10-01	8008.76
2009-01-01	7970.57
2009-04-01	8642.53
2009-07-01	9009.66
2009-10-01	9147.51
2010-01-01	8990.99
2010-04-01	8618.43
2010-07-01	9286.67
2010-10-01	9305.90
2011-01-01	9743.65
2011-04-01	9891.71
2011-07-01	9522.78
2011-10-01	9320.05
2012-01-01	9690.76
2012-04-01	9421.45
2012-07-01	9755.82
2012-10-01	9929.94
2013-01-01	9724.93
2013-04-01	9816.25
2013-07-01	9988.93
2013-10-01	10138.81
2014-01-01	10192.15
2014-04-01	10294.37
2014-07-01	9916.19
2014-10-01	9711.62
2015-01-01	9339.52
2015-04-01	9685.80