Quarter	Billions of US Dollars
2001-10-01	0.010135
2002-01-01	0.010033
2003-01-01	0.008716
2003-04-01	0.009142
2003-07-01	0.009322
2003-10-01	0.007578
2006-01-01	0.016340
2006-04-01	0.017163
2006-07-01	0.017091
2006-10-01	0.017780