Quarter	Billions of US Dollars
1993-07-01	317.76
1993-10-01	318.57
1994-01-01	333.12
1994-04-01	343.32
1994-07-01	351.84
1994-10-01	353.62
1995-01-01	374.70
1995-04-01	386.25
1995-07-01	373.56
1995-10-01	373.68
1996-01-01	369.25
1996-04-01	367.39
1996-07-01	371.81
1996-10-01	382.78
1997-01-01	374.79
1997-04-01	388.59
1997-07-01	396.63
1997-10-01	392.45
1998-01-01	400.48
1998-04-01	413.78
1998-07-01	427.76
1998-10-01	448.59
1999-01-01	458.94
1999-04-01	484.90
1999-07-01	524.64
1999-10-01	534.51
2000-01-01	541.06
2000-04-01	554.76
2000-07-01	565.28
2000-10-01	588.50
2001-01-01	623.90
2001-04-01	666.60
2001-07-01	699.59
2001-10-01	733.31
2002-01-01	731.33
2002-04-01	806.54
2002-07-01	801.73
2002-10-01	829.78
2003-01-01	849.20
2003-04-01	894.97
2003-07-01	928.22
2003-10-01	990.87
2004-01-01	981.87
2004-04-01	974.28
2004-07-01	977.45
2004-10-01	1052.49
2005-01-01	1036.70
2005-04-01	1002.67
2005-07-01	988.86
2005-10-01	997.15
2006-01-01	1020.56
2006-04-01	1053.92
2006-07-01	1071.20
2006-10-01	1121.42
2007-01-01	1139.69
2007-04-01	1200.47
2007-07-01	1234.68
2007-10-01	1295.08
2008-01-01	1333.77
2008-04-01	1377.53
2008-07-01	1318.31
2008-10-01	1273.24
2009-01-01	1304.44
2009-04-01	1465.73
2009-07-01	1541.60
2009-10-01	1584.90
2010-01-01	1567.89
2010-04-01	1525.15
2010-07-01	1659.22
2010-10-01	1689.99
2011-01-01	1785.65
2011-04-01	1862.67
2011-07-01	1826.33
2011-10-01	1836.51
2012-01-01	1949.44
2012-04-01	1945.52
2012-07-01	2069.44
2012-10-01	2178.15
2013-01-01	2196.33
2013-04-01	2278.65
2013-07-01	2391.67
2013-10-01	2512.35
2014-01-01	2534.55
2014-04-01	2604.97
2014-07-01	2555.30
2014-10-01	2558.85
2015-01-01	2483.36
2015-04-01	2594.05