Quarter	Billions of US Dollars
1993-07-01	0.27500
1993-10-01	0.22200
1994-01-01	0.18000
1994-04-01	0.17323
1994-07-01	0.19700
1994-10-01	0.20400
1995-01-01	0.28500
1995-04-01	0.31300
1995-07-01	0.17663
1995-10-01	0.26686
1996-01-01	0.38216
1996-04-01	0.28895
1996-07-01	0.32979
1996-10-01	0.20185
1997-01-01	0.21774
1997-04-01	0.23300
1997-07-01	0.28770
1997-10-01	0.17063
1998-01-01	0.15707
1998-04-01	0.14668
1998-07-01	0.20971
1998-10-01	0.25225
1999-01-01	0.31005
1999-04-01	0.52761
1999-07-01	0.54019
1999-10-01	0.41905
2000-01-01	0.31235
2000-04-01	0.52354
2000-07-01	0.60902
2000-10-01	0.58644
2001-01-01	0.94261
2001-04-01	0.92276
2001-07-01	0.84759
2001-10-01	0.96620
2002-01-01	0.54552
2002-04-01	0.86291
2002-07-01	0.88079
2002-10-01	1.25936
2003-01-01	1.72366
2003-04-01	1.35655
2003-07-01	1.20053
2003-10-01	1.28231
2004-01-01	2.03167
2004-04-01	2.23453
2004-07-01	1.68689
2004-10-01	1.47423
2005-01-01	2.48164
2005-04-01	2.43652
2005-07-01	1.92670
2005-10-01	2.74057
2006-01-01	1.75712
2006-04-01	1.43890
2006-07-01	1.35471
2006-10-01	2.14027
2007-01-01	2.58501
2007-04-01	2.19558
2007-07-01	1.09970
2007-10-01	1.79998
2008-01-01	2.17381
2008-04-01	0.75771
2008-07-01	0.88644
2008-10-01	0.03963
2009-01-01	0.30771
2009-04-01	0.35182
2009-07-01	1.69070
2009-10-01	0.62650
2010-01-01	1.13365
2010-04-01	1.77242
2010-07-01	0.19472
2010-10-01	0.06461
2011-01-01	0.04099