Quarter	Billions of US Dollars
1993-07-01	0.65237
1993-10-01	0.61937
1994-01-01	0.22961
1994-04-01	0.13633
1994-07-01	0.01055
1994-10-01	0.00445
1995-01-01	0.00145
1997-07-01	0.00521
1997-10-01	0.05911
1998-01-01	0.05907
1998-04-01	0.03083
1998-07-01	0.01941
1998-10-01	0.00503
2002-10-01	0.07315
2003-01-01	0.07460
2003-04-01	0.07791
2003-07-01	0.32033
2003-10-01	0.54157
2004-01-01	1.52788
2004-04-01	1.51022
2004-07-01	2.11304
2004-10-01	2.37711
2005-01-01	2.77505
2005-04-01	3.48108
2005-07-01	3.84576
2005-10-01	3.96804
2006-01-01	4.60854
2006-04-01	4.70184
2006-07-01	5.11099
2006-10-01	4.44688
2007-01-01	6.24374
2007-04-01	6.80806
2007-07-01	5.01806
2007-10-01	5.06844
2008-01-01	6.38750
2008-04-01	5.54818
2008-07-01	5.80001
2008-10-01	1.50179
2009-01-01	1.04799
2009-04-01	2.11165
2009-07-01	2.23054
2009-10-01	2.02245
2010-01-01	1.83133
2010-04-01	0.72791
2010-07-01	0.65802
2010-10-01	0.62401
2011-01-01	0.63676
2011-04-01	0.37400
2011-07-01	1.63231
2011-10-01	1.56207
2012-01-01	1.36080
2012-04-01	1.62950
2012-07-01	0.49000
2012-10-01	0.50700
2013-01-01	0.76781
2013-04-01	0.36261
2013-07-01	0.50741
2013-10-01	0.55209
2014-01-01	0.83694
2014-04-01	0.83021
2014-07-01	0.69452
2014-10-01	0.63400
2015-01-01	0.07999
2015-04-01	0.74816