Quarter	Billions of US Dollars
1993-07-01	0.6931
1993-10-01	0.6931
1994-01-01	0.6931
1994-04-01	0.6931
1994-07-01	0.6931
1994-10-01	0.6931
1995-01-01	0.6931
1995-04-01	0.6931
1995-07-01	0.6931
1995-10-01	0.6931
1996-01-01	0.6931
1996-04-01	0.6931
1996-07-01	0.6931
1996-10-01	0.8931
1997-01-01	0.8931
1997-04-01	0.8931
1997-07-01	0.8931
1997-10-01	1.2431
1998-01-01	1.2431
1998-04-01	1.3431
1998-07-01	1.3431
1998-10-01	1.3431
1999-01-01	1.3431
1999-04-01	1.3431
1999-07-01	1.3431
1999-10-01	1.4431
2000-01-01	1.4431
2000-04-01	1.7931
2000-07-01	1.7931
2000-10-01	1.7931
2001-01-01	1.7931
2001-04-01	1.7931
2001-07-01	1.9431
2001-10-01	1.9431
2002-01-01	2.0522
2002-04-01	2.3178
2002-07-01	2.3163
2002-10-01	2.1242
2003-01-01	2.1293
2003-04-01	2.9609
2003-07-01	2.9637
2003-10-01	2.9760
2004-01-01	3.4709
2004-04-01	3.9700
2004-07-01	3.9732
2004-10-01	5.9634
2005-01-01	6.6551
2005-04-01	7.0443
2005-07-01	7.3436
2005-10-01	9.2906
2006-01-01	11.0519
2006-04-01	13.7802
2006-07-01	16.7330
2006-10-01	19.4448
2007-01-01	24.6819
2007-04-01	27.8315
2007-07-01	28.5292
2007-10-01	29.6307
2008-01-01	29.8896
2008-04-01	30.7638
2008-07-01	34.1649
2008-10-01	33.4920
2009-01-01	32.2933
2009-04-01	32.6694
2009-07-01	34.2663
2009-10-01	34.2189
2010-01-01	34.7251
2010-04-01	34.9388
2010-07-01	34.4438
2010-10-01	39.3121
2011-01-01	39.4327
2011-04-01	38.8818
2011-07-01	36.8321
2011-10-01	36.0930
2012-01-01	34.1635
2012-04-01	34.3978
2012-07-01	36.0760
2012-10-01	38.2359
2013-01-01	39.1240
2013-04-01	40.6817
2013-07-01	38.2526
2013-10-01	37.9346
2014-01-01	37.4493
2014-04-01	37.5446
2014-07-01	36.4988
2014-10-01	41.6956
2015-01-01	38.1034
2015-04-01	37.3206