Quarter	Billions of US Dollars
1993-07-01	2.97070
1993-10-01	3.04770
1994-01-01	5.00790
1994-04-01	0.75290
1994-07-01	1.82460
1994-10-01	0.23180
1995-01-01	1.31180
1995-04-01	0.94860
1995-07-01	2.39480
1995-10-01	1.57750
1996-01-01	1.57824
1996-04-01	1.76096
1996-07-01	1.78854
1996-10-01	1.20368
1997-01-01	0.66969
1997-04-01	0.47506
1997-07-01	0.50547
1997-10-01	0.12357
1998-01-01	0.21999
1998-04-01	2.16713
1998-07-01	1.12058
1999-01-01	0.36695
1999-04-01	0.05245
1999-07-01	0.37791
1999-10-01	0.09112
2000-01-01	0.16783
2000-04-01	0.15283
2000-07-01	0.13246
2000-10-01	0.03437
2001-04-01	0.12569
2001-10-01	0.38438
2002-04-01	0.82360
2002-07-01	0.01670
2002-10-01	1.08705
2003-01-01	0.01462
2003-07-01	1.68848
2003-10-01	0.94868
2004-04-01	0.10808
2004-07-01	0.10196
2005-04-01	0.46010
2005-07-01	0.28494
2005-10-01	0.66723
2006-01-01	0.76355
2006-10-01	1.15574
2007-01-01	0.66285
2007-04-01	0.99448
2007-10-01	0.33101
2009-10-01	1.12396
2011-07-01	0.00414
2012-01-01	0.01453
2012-07-01	3.89546