Quarter	Billions of US Dollars
1993-07-01	0.22000
1993-10-01	0.14700
1994-01-01	0.18000
1994-04-01	0.13200
1994-07-01	0.19700
1994-10-01	0.20400
1995-01-01	0.28500
1995-04-01	0.26800
1995-07-01	0.17663
1995-10-01	0.26686
1996-01-01	0.38216
1996-04-01	0.27395
1996-07-01	0.30779
1996-10-01	0.18685
1997-01-01	0.21774
1997-04-01	0.18800
1997-07-01	0.19132
1997-10-01	0.17063
1998-01-01	0.14007
1998-04-01	0.12600
1998-07-01	0.18200
1998-10-01	0.17205
1999-01-01	0.31005
1999-04-01	0.37261
1999-07-01	0.54019
1999-10-01	0.41905
2000-01-01	0.31235
2000-04-01	0.52354
2000-07-01	0.50902
2000-10-01	0.50644
2001-01-01	0.65419
2001-04-01	0.62356
2001-07-01	0.63959
2001-10-01	0.61489
2002-01-01	0.43363
2002-04-01	0.28502
2002-07-01	0.62558
2002-10-01	0.71222
2003-01-01	0.92689
2003-04-01	1.04970
2003-07-01	1.04637
2003-10-01	1.06906
2004-01-01	1.37151
2004-04-01	1.48571
2004-07-01	1.39353
2004-10-01	1.27356
2005-01-01	1.32221
2005-04-01	1.69366
2005-07-01	1.01405
2005-10-01	1.56188
2006-01-01	0.93892
2006-04-01	0.60911
2006-07-01	0.91833
2006-10-01	1.69962
2007-01-01	1.48858
2007-04-01	1.65735
2007-07-01	0.64250
2007-10-01	1.02208
2008-01-01	1.16330
2008-04-01	0.56494
2008-07-01	0.63598
2009-10-01	0.04609
2010-04-01	0.04347
2010-10-01	0.06461