Quarter	Billions of US Dollars
1993-07-01	4.52383
1993-10-01	4.13626
1994-01-01	4.06939
1994-04-01	2.50288
1994-07-01	2.06347
1994-10-01	2.15019
1995-01-01	1.05016
1995-04-01	0.84029
1995-07-01	1.06256
1995-10-01	0.47240
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	0.26358
1997-10-01	0.21156
1998-01-01	0.18533
1998-04-01	0.12339
1998-07-01	0.08279
1998-10-01	0.07710
1999-01-01	0.12947
1999-04-01	0.21595
1999-07-01	0.30008
1999-10-01	0.32521
2000-01-01	0.34426
2000-04-01	0.27414
2000-07-01	0.16621
2000-10-01	0.14960
2001-01-01	0.12431
2001-04-01	0.06107
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