Quarter	Billions of US Dollars
1993-07-01	140.98
1993-10-01	149.49
1994-01-01	163.42
1994-04-01	168.33
1994-07-01	175.41
1994-10-01	182.45
1995-01-01	187.07
1995-04-01	194.09
1995-07-01	203.36
1995-10-01	207.74
1996-01-01	223.18
1996-04-01	239.36
1996-07-01	263.24
1996-10-01	290.44
1997-01-01	308.41
1997-04-01	327.93
1997-07-01	346.43
1997-10-01	368.14
1998-01-01	388.76
1998-04-01	418.11
1998-07-01	438.84
1998-10-01	438.92
1999-01-01	458.87
1999-04-01	480.36
1999-07-01	495.14
1999-10-01	502.62
2000-01-01	524.98
2000-04-01	556.01
2000-07-01	560.74
2000-10-01	588.88
2001-01-01	615.81
2001-04-01	637.16
2001-07-01	659.86
2001-10-01	661.72
2002-01-01	673.05
2002-04-01	684.01
2002-07-01	683.71
2002-10-01	678.17
2003-01-01	694.92
2003-04-01	700.76
2003-07-01	722.36
2003-10-01	737.56
2004-01-01	768.32
2004-04-01	801.87
2004-07-01	804.92
2004-10-01	820.27
2005-01-01	820.80
2005-04-01	836.26
2005-07-01	827.95
2005-10-01	892.57
2006-01-01	925.99
2006-04-01	1024.57
2006-07-01	1101.23
2006-10-01	1242.94
2007-01-01	1347.28
2007-04-01	1478.47
2007-07-01	1522.31
2007-10-01	1514.32
2008-01-01	1545.85
2008-04-01	1544.10
2008-07-01	1541.85
2008-10-01	1553.94
2009-01-01	1541.51
2009-04-01	1570.28
2009-07-01	1561.87
2009-10-01	1561.71
2010-01-01	1561.68
2010-04-01	1547.02
2010-07-01	1540.64
2010-10-01	1522.65
2011-01-01	1528.22
2011-04-01	1529.78
2011-07-01	1503.63
2011-10-01	1510.75
2012-01-01	1488.93
2012-04-01	1474.71
2012-07-01	1458.71
2012-10-01	1462.42
2013-01-01	1493.08
2013-04-01	1500.91
2013-07-01	1537.12
2013-10-01	1568.87
2014-01-01	1559.97
2014-04-01	1592.57
2014-07-01	1605.58
2014-10-01	1592.67
2015-01-01	1595.96
2015-04-01	1591.99