Quarter	Billions of US Dollars
1993-07-01	0.43055
1993-10-01	0.35000
1994-01-01	0.36719
1994-04-01	0.52901
1994-07-01	0.57297
1994-10-01	0.91732
1995-01-01	0.70576
1995-04-01	0.70098
1995-07-01	0.98672
1995-10-01	0.62975
1996-01-01	0.62419
1996-04-01	0.75890
1996-07-01	0.40033
1996-10-01	0.53599
1997-01-01	0.62083
1997-04-01	0.70133
1997-07-01	0.95798
1997-10-01	0.87585
1998-01-01	0.65112
1998-04-01	0.79720
1998-07-01	1.01617
1998-10-01	1.42922
1999-01-01	1.23470
1999-04-01	1.19992
1999-07-01	1.33533
1999-10-01	1.34904
2000-01-01	1.61793
2000-04-01	1.73639
2000-07-01	3.23941
2000-10-01	2.98200
2001-01-01	1.70813
2001-04-01	1.80263
2001-07-01	1.03251
2001-10-01	0.95810
2002-01-01	1.16273
2002-04-01	1.43146
2002-07-01	1.20466
2002-10-01	1.09965
2003-01-01	0.74282
2003-04-01	0.61244
2003-07-01	0.82325
2003-10-01	1.45848
2004-01-01	1.67167
2004-04-01	1.78672
2004-07-01	1.62710
2004-10-01	1.10602
2005-01-01	1.24506
2005-04-01	1.12017
2005-07-01	1.02512
2005-10-01	1.06881
2006-01-01	2.39704
2006-04-01	3.12960
2006-07-01	3.39479
2006-10-01	2.86822
2007-01-01	1.78688
2007-04-01	1.30582
2007-07-01	1.31835
2007-10-01	1.52427
2008-01-01	2.54365
2008-04-01	2.36522
2008-07-01	2.46177
2008-10-01	2.02519
2009-01-01	1.23596
2009-04-01	2.27142
2009-07-01	2.17066
2009-10-01	2.24674
2010-01-01	1.46866
2010-04-01	1.36619
2010-07-01	1.98041
2010-10-01	2.02889
2011-01-01	2.13218
2011-04-01	1.82953
2011-07-01	1.87439
2011-10-01	2.04512
2012-01-01	2.49410
2012-04-01	2.01621
2012-07-01	1.89227
2012-10-01	1.12111
2013-01-01	1.70396
2013-04-01	2.99203
2013-07-01	2.99544
2013-10-01	4.93379
2014-01-01	5.53809
2014-04-01	5.16531
2014-07-01	4.93489
2014-10-01	3.17389
2015-01-01	1.61653
2015-04-01	1.32086