Quarter	Billions of US Dollars
1977-04-01	0.00790
1978-04-01	0.06200
1985-04-01	0.01000
1994-10-01	0.19074
1995-01-01	5.76569
1995-10-01	0.02000
1997-04-01	0.62500
2000-07-01	3.75000
2005-10-01	0.65000
2014-04-01	2.00000
2015-01-01	0.75000
2015-04-01	0.75000