Quarter	Billions of US Dollars
1993-10-01	0.08941
1994-01-01	0.14542
1994-04-01	0.25240
1994-07-01	0.36301
1994-10-01	0.25065
1995-01-01	0.22384
1995-04-01	0.13320
1995-07-01	0.07048
1995-10-01	0.11838
1996-01-01	0.11481
1996-04-01	0.22192
1996-07-01	0.04506
1998-07-01	0.11633
1998-10-01	0.11639
1999-01-01	0.10716
1999-04-01	0.15303
1999-07-01	0.17000
1999-10-01	0.17000
2000-01-01	0.17000
2000-04-01	0.23269
2000-07-01	0.22750
2000-10-01	0.23104
2001-01-01	0.22794
2001-04-01	0.22000
2001-07-01	0.33779
2001-10-01	0.64390
2002-01-01	0.78572
2002-04-01	0.78023
2002-07-01	0.46230
2002-10-01	0.88687
2003-01-01	0.29887
2003-04-01	0.78650
2003-07-01	0.57043
2003-10-01	0.40510
2004-01-01	0.31794
2004-04-01	0.61393
2004-07-01	0.33775
2004-10-01	0.39501
2005-01-01	0.70006
2005-04-01	0.56228
2005-07-01	0.24084
2005-10-01	0.57333
2006-04-01	0.39410
2006-07-01	0.80737
2006-10-01	1.32591
2007-01-01	0.62000
2007-04-01	1.39654
2007-07-01	0.63806
2007-10-01	1.06359
2008-01-01	1.55274
2008-04-01	1.05619
2008-07-01	1.15282
2008-10-01	2.69892
2009-01-01	2.32823
2009-04-01	2.47225
2009-07-01	2.56033
2009-10-01	1.32319
2010-01-01	2.76074
2010-04-01	2.96663
2010-07-01	3.64785
2010-10-01	3.33627
2011-01-01	2.27170
2011-04-01	0.76167
2011-07-01	0.33758
2011-10-01	0.33823
2012-01-01	0.00668
2012-04-01	0.04407
2012-07-01	0.03552
2012-10-01	1.97205
2013-01-01	2.04191
2013-04-01	1.30946
2013-07-01	1.34672
2013-10-01	0.51044
2014-01-01	1.57614
2014-04-01	1.52696
2014-07-01	1.70437
2014-10-01	1.51156
2015-01-01	0.51159
2015-04-01	0.52228