Quarter	Billions of US Dollars
1996-04-01	0.13904
1996-07-01	0.13904
1996-10-01	0.00809
1997-01-01	0.00809
1997-04-01	0.00809
1997-07-01	0.00809
1997-10-01	0.00809
1998-01-01	0.00809
1998-04-01	0.00809
1998-07-01	0.00809
1998-10-01	0.00809
1999-01-01	0.00809
1999-04-01	0.00809
1999-07-01	0.00809
1999-10-01	0.00809
2000-01-01	0.00809
2000-04-01	0.00809
2000-07-01	0.33309
2000-10-01	0.33309
2001-01-01	0.33309
2001-04-01	0.33309
2001-07-01	0.00809
2001-10-01	0.00809
2002-01-01	0.00809
2002-04-01	0.00809
2002-07-01	0.00809
2002-10-01	0.00809
2003-01-01	0.00809
2003-04-01	0.24179
2003-07-01	0.24639
2003-10-01	0.26639
2004-01-01	0.25809
2004-04-01	0.61584
2004-07-01	0.62854
2004-10-01	0.68914
2005-01-01	0.65629
2005-04-01	0.00809
2005-07-01	0.00809
2005-10-01	0.01213
2006-01-01	0.01213
2006-04-01	0.00808
2006-07-01	0.00808
2008-01-01	0.63248
2008-04-01	0.63056
2008-07-01	0.57212
2008-10-01	0.55668
2009-01-01	0.66540
2009-04-01	0.70670
2009-07-01	0.73215
2009-10-01	0.72030
2010-04-01	0.55219
2010-07-01	0.61416
2010-10-01	0.60129
2011-01-01	0.63932