Quarter	Billions of US Dollars
1993-07-01	3.2272
1993-10-01	2.4752
1994-01-01	2.1001
1994-04-01	2.6057
1994-07-01	2.8617
1994-10-01	3.5329
1995-01-01	6.3913
1995-04-01	7.4259
1995-07-01	7.6371
1995-10-01	7.3425
1996-01-01	4.8702
1996-04-01	3.8765
1996-07-01	3.0173
1996-10-01	3.3731
1997-01-01	5.4771
1997-04-01	6.1012
1997-07-01	5.3320
1997-10-01	5.9130
1998-01-01	5.2956
1998-04-01	6.7714
1998-07-01	7.3608
1998-10-01	7.7774
1999-01-01	5.5618
1999-04-01	5.6368
1999-07-01	5.0585
1999-10-01	4.3584
2000-01-01	4.6545
2000-04-01	6.5932
2000-07-01	6.4824
2000-10-01	7.0343
2001-01-01	6.8733
2001-04-01	8.1463
2001-07-01	7.4608
2001-10-01	7.2656
2002-01-01	7.4064
2002-04-01	6.8690
2002-07-01	5.9802
2002-10-01	6.3080
2003-01-01	6.7319
2003-04-01	6.1634
2003-07-01	5.7305
2003-10-01	5.6220
2004-01-01	6.2484
2004-04-01	4.8044
2004-07-01	6.1952
2004-10-01	5.7492
2005-01-01	6.5082
2005-04-01	8.1744
2005-07-01	6.0845
2005-10-01	6.3045
2006-01-01	3.7362
2006-04-01	4.9302
2006-07-01	5.3742
2006-10-01	4.1225
2007-01-01	10.2183
2007-04-01	11.4905
2007-07-01	13.8302
2007-10-01	14.4807
2008-01-01	8.2865
2008-04-01	5.7796
2008-07-01	6.1971
2008-10-01	6.3490
2009-01-01	7.6997
2009-04-01	7.4757
2009-07-01	6.6996
2009-10-01	7.6823
2010-01-01	6.8400
2010-04-01	11.4433
2010-07-01	16.0738
2010-10-01	16.8302
2011-01-01	16.6000
2011-04-01	13.7570
2011-07-01	10.3869
2011-10-01	9.3196
2012-01-01	10.7639
2012-04-01	9.9259
2012-07-01	9.1974
2012-10-01	11.6188
2013-01-01	8.7879
2013-04-01	17.4970
2013-07-01	18.6338
2013-10-01	16.5693
2014-01-01	18.3873
2014-04-01	14.6554
2014-07-01	14.5161
2014-10-01	14.9950
2015-01-01	12.4638
2015-04-01	11.6982