Quarter	Billions of US Dollars
1999-04-01	0.00676
1999-07-01	0.01130
2000-04-01	0.00032
2000-07-01	-0.01026
2001-04-01	-0.00539
2001-07-01	0.00768
2001-10-01	-0.00773
2007-07-01	0.06148
2007-10-01	0.22965
2008-01-01	0.06224
2008-04-01	-0.02197
2008-07-01	-0.00480
2008-10-01	-0.09241
2009-01-01	-0.12904
2009-04-01	-0.04872
2009-07-01	-0.03199