Quarter	Billions of US Dollars
1994-01-01	0.20500
1998-04-01	0.25000
1999-01-01	-0.00976
1999-07-01	-0.00976
2000-01-01	-0.00977
2000-07-01	-0.00976
2001-01-01	-0.00976
2001-07-01	-0.00976
2002-01-01	-0.00976
2002-07-01	-0.00977
2003-01-01	-0.00976
2003-07-01	-0.01953
2004-07-01	-0.00976
2005-01-01	-0.00976
2005-07-01	-0.00976
2006-01-01	-0.00976
2006-10-01	-0.00977
2007-04-01	-0.00976
2007-07-01	-0.00975
2008-01-01	-0.00977
2008-07-01	-0.00976
2009-01-01	-0.00976