Quarter	Billions of US Dollars
1993-07-01	244.81
1993-10-01	256.27
1994-01-01	284.17
1994-04-01	299.49
1994-07-01	323.23
1994-10-01	332.18
1995-01-01	354.04
1995-04-01	369.08
1995-07-01	379.86
1995-10-01	387.64
1996-01-01	409.99
1996-04-01	434.76
1996-07-01	469.81
1996-10-01	514.75
1997-01-01	534.23
1997-04-01	572.59
1997-07-01	601.75
1997-10-01	633.84
1998-01-01	660.90
1998-04-01	708.46
1998-07-01	753.80
1998-10-01	776.60
1999-01-01	806.54
1999-04-01	874.32
1999-07-01	949.61
1999-10-01	988.21
2000-01-01	1021.91
2000-04-01	1098.21
2000-07-01	1112.56
2000-10-01	1201.72
2001-01-01	1248.07
2001-04-01	1306.83
2001-07-01	1420.08
2001-10-01	1470.80
2002-01-01	1504.28
2002-04-01	1665.26
2002-07-01	1680.12
2002-10-01	1771.89
2003-01-01	1867.75
2003-04-01	1981.77
2003-07-01	2083.03
2003-10-01	2311.04
2004-01-01	2392.10
2004-04-01	2507.40
2004-07-01	2645.32
2004-10-01	2976.54
2005-01-01	2972.07
2005-04-01	3028.76
2005-07-01	3047.03
2005-10-01	3258.88
2006-01-01	3499.22
2006-04-01	3871.34
2006-07-01	4111.95
2006-10-01	4663.54
2007-01-01	5057.89
2007-04-01	5531.72
2007-07-01	5809.16
2007-10-01	6018.21
2008-01-01	6387.57
2008-04-01	6654.41
2008-07-01	6370.78
2008-10-01	6539.39
2009-01-01	6394.54
2009-04-01	6848.48
2009-07-01	7029.35
2009-10-01	6933.31
2010-01-01	6606.27
2010-04-01	6177.08
2010-07-01	6675.96
2010-10-01	6525.88
2011-01-01	6738.88
2011-04-01	6822.38
2011-07-01	6453.33
2011-10-01	6302.77
2012-01-01	6357.21
2012-04-01	5971.20
2012-07-01	5963.82
2012-10-01	5943.01
2013-01-01	5751.93
2013-04-01	5748.40
2013-07-01	5893.89
2013-10-01	5975.55
2014-01-01	5908.36
2014-04-01	5916.24
2014-07-01	5609.92
2014-10-01	5440.49
2015-01-01	5032.88
2015-04-01	5170.62