Quarter	Billions of US Dollars
1993-07-01	184.47
1993-10-01	181.66
1994-01-01	180.93
1994-04-01	184.55
1994-07-01	194.25
1994-10-01	192.86
1995-01-01	214.03
1995-04-01	232.94
1995-07-01	241.38
1995-10-01	254.70
1996-01-01	263.46
1996-04-01	279.11
1996-07-01	235.07
1996-10-01	310.13
1997-01-01	308.37
1997-04-01	318.33
1997-07-01	334.85
1997-10-01	353.08
1998-01-01	375.79
1998-04-01	373.22
1998-07-01	398.85
1998-10-01	413.79
1999-01-01	431.09
1999-04-01	455.16
1999-07-01	546.14
1999-10-01	569.49
2000-01-01	602.50
2000-04-01	651.74
2000-07-01	640.81
2000-10-01	705.44
2001-01-01	730.04
2001-04-01	716.50
2001-07-01	768.29
2001-10-01	789.69
2002-01-01	862.59
2002-04-01	992.81
2002-07-01	1017.44
2002-10-01	1057.89
2003-01-01	1146.46
2003-04-01	1221.08
2003-07-01	1259.45
2003-10-01	1395.39
2004-01-01	1421.55
2004-04-01	1423.79
2004-07-01	1515.25
2004-10-01	1642.21
2005-01-01	1651.36
2005-04-01	1637.76
2005-07-01	1660.36
2005-10-01	1706.61
2006-01-01	1821.12
2006-04-01	1892.68
2006-07-01	1958.65
2006-10-01	2034.80
2007-01-01	2170.32
2007-04-01	2303.22
2007-07-01	2398.17
2007-10-01	2559.38
2008-01-01	2881.21
2008-04-01	2946.27
2008-07-01	2750.45
2008-10-01	2508.54
2009-01-01	2402.85
2009-04-01	2558.05
2009-07-01	2702.60
2009-10-01	2622.51
2010-01-01	2625.16
2010-04-01	2492.54
2010-07-01	2635.43
2010-10-01	2600.44
2011-01-01	2816.87
2011-04-01	2861.87
2011-07-01	2803.68
2011-10-01	2731.28
2012-01-01	2797.62
2012-04-01	2602.17
2012-07-01	2589.42
2012-10-01	2558.01
2013-01-01	2533.31
2013-04-01	2558.57
2013-07-01	2615.88
2013-10-01	2643.82
2014-01-01	2554.46
2014-04-01	2487.43
2014-07-01	2380.45
2014-10-01	2291.15
2015-01-01	2136.22
2015-04-01	2163.27