Quarter	Billions of US Dollars
1993-07-01	116.86
1993-10-01	130.89
1994-01-01	132.46
1994-04-01	144.22
1994-07-01	121.35
1994-10-01	114.79
1995-01-01	115.53
1995-04-01	122.56
1995-07-01	139.62
1995-10-01	125.91
1996-01-01	200.29
1996-04-01	237.70
1996-07-01	246.22
1996-10-01	215.84
1997-01-01	242.55
1997-04-01	222.92
1997-07-01	233.65
1997-10-01	161.89
1998-01-01	277.32
1998-04-01	260.11
1998-07-01	197.17
1998-10-01	203.46
1999-01-01	336.77
1999-04-01	342.57
1999-07-01	317.81
1999-10-01	257.18
2000-01-01	369.17
2000-04-01	349.63
2000-07-01	368.63
2000-10-01	334.44
2001-01-01	554.58
2001-04-01	553.47
2001-07-01	351.43
2001-10-01	467.00
2002-01-01	477.62
2002-04-01	452.70
2002-07-01	327.98
2002-10-01	394.55
2003-01-01	601.21
2003-04-01	620.36
2003-07-01	524.51
2003-10-01	580.19
2004-01-01	758.76
2004-04-01	628.47
2004-07-01	596.46
2004-10-01	661.59
2005-01-01	802.79
2005-04-01	769.98
2005-07-01	639.70
2005-10-01	829.92
2006-01-01	926.95
2006-04-01	935.06
2006-07-01	881.54
2006-10-01	1192.08
2007-01-01	1253.52
2007-04-01	1331.93
2007-07-01	759.35
2007-10-01	779.62
2008-01-01	820.20
2008-04-01	1375.46
2008-07-01	829.35
2008-10-01	1041.44
2009-01-01	1081.25
2009-04-01	1182.61
2009-07-01	868.66
2009-10-01	827.88
2010-01-01	1009.62
2010-04-01	705.86
2010-07-01	858.12
2010-10-01	718.97
2011-01-01	1058.99
2011-04-01	932.99
2011-07-01	638.99
2011-10-01	710.94
2012-01-01	1321.52
2012-04-01	751.68
2012-07-01	847.86
2012-10-01	816.34
2013-01-01	921.01
2013-04-01	894.55
2013-07-01	803.33
2013-10-01	918.49
2014-01-01	1063.45
2014-04-01	1185.01
2014-07-01	891.61
2014-10-01	764.19
2015-01-01	1026.48
2015-04-01	868.73