Quarter	Billions of US Dollars
1993-07-01	1.1975
1993-10-01	0.9305
1994-01-01	0.5490
1994-04-01	0.4911
1994-07-01	0.5700
1994-10-01	0.5763
1995-01-01	0.7760
1995-04-01	0.9673
1995-07-01	1.3687
1995-10-01	1.2215
1996-01-01	0.9684
1996-04-01	0.6077
1996-07-01	0.2050
1996-10-01	0.0871
1997-01-01	0.0845
1997-04-01	0.0843
1997-07-01	0.0344
1997-10-01	0.3617
1998-01-01	0.3593
1998-04-01	0.3498
1998-07-01	0.3557
1998-10-01	0.1185
1999-01-01	0.1143
1999-04-01	0.3513
1999-07-01	1.4754
1999-10-01	1.7281
2000-01-01	1.5306
2000-04-01	1.9493
2000-07-01	0.8886
2000-10-01	1.0409
2001-01-01	1.2146
2001-04-01	1.1261
2001-07-01	1.6152
2001-10-01	1.7193
2002-01-01	2.3406
2002-04-01	2.4291
2002-07-01	2.3375
2002-10-01	2.0454
2003-01-01	1.5056
2003-04-01	1.3604
2003-07-01	1.0185
2003-10-01	3.6276
2004-01-01	3.6686
2004-04-01	4.1350
2004-07-01	6.5696
2004-10-01	5.1094
2005-01-01	5.3244
2005-04-01	5.3962
2005-07-01	3.6723
2005-10-01	5.1291
2006-01-01	5.6315
2006-04-01	4.8720
2006-07-01	3.6093
2006-10-01	2.2674
2007-01-01	2.3771
2007-04-01	2.5891
2007-07-01	8.1557
2007-10-01	8.1887
2008-01-01	8.0526
2008-04-01	10.3148
2008-07-01	4.0146
2008-10-01	4.3965
2009-01-01	4.4502
2009-04-01	2.0472
2009-07-01	3.8661
2009-10-01	3.1272
2010-01-01	3.9980
2010-04-01	4.4253
2010-07-01	1.6173
2010-10-01	2.2221
2011-01-01	2.3797
2011-04-01	3.3256
2011-07-01	4.6756
2011-10-01	4.7881
2012-01-01	7.2522
2012-04-01	5.5765
2012-07-01	4.2752
2012-10-01	4.5327
2013-01-01	5.3616
2013-04-01	5.2395
2013-07-01	3.6972
2013-10-01	5.4035
2014-01-01	7.5598
2014-04-01	9.1296
2014-07-01	9.4234
2014-10-01	6.1852
2015-01-01	7.0519
2015-04-01	6.7548