Quarter	Billions of US Dollars
1993-10-01	0.01050
1994-01-01	0.01050
1994-04-01	0.01050
1994-07-01	0.01050
1996-04-01	0.11500
1996-07-01	0.05000
1996-10-01	0.03000
1997-01-01	0.03089
1997-04-01	0.01181
1998-01-01	0.01000
2012-04-01	0.01581
2012-07-01	0.09936
2012-10-01	0.06475
2013-01-01	0.25780
2013-04-01	0.43043
2013-07-01	0.77184
2013-10-01	1.04102
2014-01-01	1.54378
2014-04-01	1.68538
2014-07-01	1.92586
2014-10-01	1.97377
2015-01-01	2.17593
2015-04-01	2.14375