Quarter	Billions of US Dollars
1993-07-01	4.60883
1993-10-01	4.20576
1994-01-01	4.13389
1994-04-01	2.65788
1994-07-01	2.21847
1994-10-01	2.28519
1995-01-01	1.18343
1995-04-01	0.97356
1995-07-01	1.18756
1995-10-01	0.59740
1996-01-01	0.60543
1996-04-01	0.65519
1996-07-01	0.47908
1996-10-01	0.38588
1997-01-01	0.28432
1997-04-01	0.13350
1997-07-01	0.24055
1997-10-01	0.17845
1998-01-01	0.16309
1998-04-01	0.11270
1998-07-01	0.07298
1998-10-01	0.06745
1999-01-01	0.11892
1999-04-01	0.20040
1999-07-01	0.28451
1999-10-01	0.30965
2000-01-01	0.32620
2000-04-01	0.26108
2000-07-01	0.15271
2000-10-01	0.13610
2001-01-01	0.11071
2001-04-01	0.05097
2001-07-01	0.04105
2001-10-01	0.05160
2002-01-01	0.04094
2002-04-01	0.02840
2002-07-01	0.02205
2002-10-01	0.02174
2003-01-01	0.02585
2003-04-01	0.02585
2003-07-01	0.03489
2003-10-01	0.03905
2004-01-01	0.03873
2004-04-01	0.04702
2004-07-01	0.06085
2004-10-01	0.05894
2005-01-01	0.05660
2005-04-01	0.04373
2005-07-01	0.01147
2005-10-01	0.00513
2006-01-01	0.00076
2006-04-01	0.00052
2013-07-01	0.50000
2013-10-01	1.50000
2014-01-01	1.50000
2014-04-01	1.50000
2014-07-01	1.50000
2014-10-01	1.50000
2015-01-01	1.50000
2015-04-01	1.50000