Quarter	Billions of US Dollars
1993-07-01	81.90
1993-10-01	84.43
1994-01-01	91.35
1994-04-01	96.65
1994-07-01	101.50
1994-10-01	102.83
1995-01-01	109.26
1995-04-01	109.67
1995-07-01	111.16
1995-10-01	111.82
1996-01-01	113.76
1996-04-01	118.30
1996-07-01	126.05
1996-10-01	147.98
1997-01-01	160.98
1997-04-01	173.20
1997-07-01	175.15
1997-10-01	179.26
1998-01-01	198.71
1998-04-01	207.47
1998-07-01	220.40
1998-10-01	229.22
1999-01-01	237.06
1999-04-01	251.37
1999-07-01	277.23
1999-10-01	280.78
2000-01-01	291.38
2000-04-01	285.89
2000-07-01	296.38
2000-10-01	325.03
2001-01-01	323.62
2001-04-01	329.49
2001-07-01	352.85
2001-10-01	364.48
2002-01-01	366.89
2002-04-01	404.07
2002-07-01	424.38
2002-10-01	447.60
2003-01-01	452.99
2003-04-01	486.04
2003-07-01	507.98
2003-10-01	568.70
2004-01-01	599.80
2004-04-01	614.84
2004-07-01	630.31
2004-10-01	699.08
2005-01-01	713.43
2005-04-01	697.06
2005-07-01	704.37
2005-10-01	719.07
2006-01-01	761.72
2006-04-01	842.94
2006-07-01	888.39
2006-10-01	956.20
2007-01-01	995.97
2007-04-01	1073.80
2007-07-01	1114.63
2007-10-01	1112.36
2008-01-01	1138.37
2008-04-01	1162.12
2008-07-01	1049.29
2008-10-01	873.08
2009-01-01	896.48
2009-04-01	1077.83
2009-07-01	1078.26
2009-10-01	1076.63
2010-01-01	1014.35
2010-04-01	1018.09
2010-07-01	1074.97
2010-10-01	1042.15
2011-01-01	1076.88
2011-04-01	1090.97
2011-07-01	1065.61
2011-10-01	1042.20
2012-01-01	1104.19
2012-04-01	1091.62
2012-07-01	1153.33
2012-10-01	1144.98
2013-01-01	1101.85
2013-04-01	1130.01
2013-07-01	1201.80
2013-10-01	1226.70
2014-01-01	1257.84
2014-04-01	1300.96
2014-07-01	1231.50
2014-10-01	1173.97
2015-01-01	1132.12
2015-04-01	1227.56