Quarter	Billions of US Dollars
1997-10-01	0.10000
1998-01-01	0.11073
1998-04-01	0.12673
1998-07-01	0.13873
1998-10-01	0.13873
1999-01-01	0.10200
1999-04-01	0.01200
2003-10-01	0.37495
2004-01-01	0.29949
2004-04-01	0.51017
2004-07-01	0.58877
2004-10-01	0.24109
2005-01-01	0.53152
2005-04-01	0.15720
2005-07-01	0.03613
2005-10-01	0.03539