Quarter	Billions of US Dollars
1993-07-01	0.7581
1993-10-01	0.7399
1994-01-01	1.7899
1994-04-01	0.2403
1994-07-01	1.0413
1994-10-01	2.5507
1995-01-01	2.7850
1995-04-01	0.5741
1995-07-01	4.5356
1995-10-01	5.0013
1996-01-01	2.9715
1996-04-01	1.5717
1996-07-01	5.1710
1996-10-01	4.1298
1997-01-01	6.3814
1997-04-01	6.8672
1997-07-01	6.4043
1997-10-01	1.7482
1998-01-01	3.8593
1998-04-01	5.1615
1998-07-01	1.4423
1998-10-01	0.5507
1999-01-01	2.7947
1999-04-01	4.2238
1999-07-01	2.2096
1999-10-01	1.3295
2000-01-01	3.9070
2000-04-01	0.9478
2000-07-01	-0.5891
2000-10-01	1.6583
2001-01-01	3.8308
2001-04-01	3.5707
2001-07-01	4.0363
2001-10-01	2.9255
2002-01-01	4.5638
2002-04-01	4.6728
2002-07-01	7.0957
2002-10-01	7.5874
2003-01-01	9.6338
2003-04-01	8.2582
2003-07-01	3.0231
2003-10-01	6.2705
2004-01-01	15.2068
2004-04-01	7.0634
2004-07-01	8.0116
2004-10-01	6.9552
2005-01-01	15.7874
2005-04-01	13.6008
2005-07-01	16.9326
2005-10-01	13.6147
2006-01-01	14.9472
2006-04-01	9.2398
2006-07-01	12.6722
2006-10-01	13.9371
2007-01-01	16.1313
2007-04-01	23.4948
2007-07-01	11.3643
2007-10-01	6.1508
2008-01-01	20.5552
2008-04-01	20.7134
2008-07-01	4.9511
2008-10-01	0.0783
2009-01-01	3.1470
2009-04-01	6.0502
2009-07-01	1.4525
2009-10-01	9.0952
2010-01-01	14.0569
2010-04-01	5.5176
2010-07-01	15.7824
2010-10-01	19.6529
2011-01-01	21.2104
2011-04-01	22.8886
2011-07-01	30.1108
2011-10-01	20.0291
2012-01-01	27.7141
2012-04-01	25.9487
2012-07-01	28.9523
2012-10-01	16.1457
2013-01-01	18.8633
2013-04-01	14.2370
2013-07-01	2.8720
2013-10-01	11.2868
2014-01-01	13.9347
2014-04-01	7.2936
2014-07-01	17.6993
2014-10-01	11.2284
2015-01-01	5.5769
2015-04-01	10.1131