Quarter	Billions of US Dollars
1989-10-01	280.46
1990-01-01	283.85
1990-04-01	289.05
1990-07-01	298.09
1990-10-01	304.96
1991-01-01	317.42
1991-04-01	329.65
1991-07-01	341.54
1991-10-01	340.02
1992-01-01	334.02
1992-04-01	340.94
1992-07-01	334.87
1992-10-01	330.61
1993-01-01	345.59
1993-04-01	343.32
1993-07-01	337.86
1993-10-01	348.65
1994-01-01	339.10
1994-04-01	346.85
1994-07-01	365.20
1994-10-01	353.04
1995-01-01	355.38
1995-04-01	369.87
1995-07-01	388.48
1995-10-01	389.63
1996-01-01	392.09
1996-04-01	397.98
1996-07-01	404.47
1996-10-01	415.74
1997-01-01	416.77
1997-04-01	427.66
1997-07-01	433.72
1997-10-01	430.44
1998-01-01	434.02
1998-04-01	430.89
1998-07-01	415.44
1998-10-01	416.10
1999-01-01	426.46
1999-04-01	451.01
1999-07-01	448.98
1999-10-01	466.64
2000-01-01	459.76
2000-04-01	468.98
2000-07-01	465.67
2000-10-01	470.61
2001-01-01	448.09
2001-04-01	472.40
2001-07-01	457.03
2001-10-01	454.94
2002-01-01	461.96
2002-04-01	483.17
2002-07-01	464.67
2002-10-01	467.73
2003-01-01	511.25
2003-04-01	556.60
2003-07-01	563.48
2003-10-01	591.55
2004-01-01	598.05
2004-04-01	585.55
2004-07-01	624.07
2004-10-01	663.12
2005-01-01	672.30
2005-04-01	665.86
2005-07-01	707.09
2005-10-01	705.06
2006-01-01	713.47
2006-04-01	747.62
2006-07-01	754.59
2006-10-01	723.53
2007-01-01	732.67
2007-04-01	800.96
2007-07-01	867.64
2007-10-01	880.62
2008-01-01	861.75
2008-04-01	877.17
2008-07-01	843.20
2008-10-01	739.85
2009-01-01	749.99
2009-04-01	836.55
2009-07-01	934.29
2009-10-01	985.50
2010-01-01	1053.28
2010-04-01	1042.02
2010-07-01	1090.33
2010-10-01	1148.12
2011-01-01	1219.11
2011-04-01	1253.38
2011-07-01	1174.20
2011-10-01	1221.34
2012-01-01	1280.34
2012-04-01	1274.18
2012-07-01	1339.78
2012-10-01	1351.71
2013-01-01	1360.18
2013-04-01	1339.14
2013-07-01	1398.58
2013-10-01	1381.41
2014-01-01	1339.00
2014-04-01	1410.63
2014-07-01	1367.01
2014-10-01	1328.58
2015-01-01	1239.84