Quarter	Billions of US Dollars
1993-07-01	10.1055
1993-10-01	7.8265
1994-01-01	6.9079
1994-04-01	6.2998
1994-07-01	8.4450
1994-10-01	10.3001
1995-01-01	12.6205
1995-04-01	14.1725
1995-07-01	13.4931
1995-10-01	13.1428
1996-01-01	11.3718
1996-04-01	9.2669
1996-07-01	9.5985
1996-10-01	9.2831
1997-01-01	10.0392
1997-04-01	10.1714
1997-07-01	9.7931
1997-10-01	13.2173
1998-01-01	12.0796
1998-04-01	12.5814
1998-07-01	13.7726
1998-10-01	14.9498
1999-01-01	14.5684
1999-04-01	16.4990
1999-07-01	18.3175
1999-10-01	14.8604
2000-01-01	16.1233
2000-04-01	14.3108
2000-07-01	13.8323
2000-10-01	13.6530
2001-01-01	11.7973
2001-04-01	10.1362
2001-07-01	8.8787
2001-10-01	8.6167
2002-01-01	9.9042
2002-04-01	12.4678
2002-07-01	13.8584
2002-10-01	16.6189
2003-01-01	18.4793
2003-04-01	18.0859
2003-07-01	21.1059
2003-10-01	19.6157
2004-01-01	16.1333
2004-04-01	15.9380
2004-07-01	10.7949
2004-10-01	12.9389
2005-01-01	17.1830
2005-04-01	16.6138
2005-07-01	15.9431
2005-10-01	15.0763
2006-01-01	13.9246
2006-04-01	14.9236
2006-07-01	15.4185
2006-10-01	14.8227
2007-01-01	13.8447
2007-04-01	14.5344
2007-07-01	14.8535
2007-10-01	17.3356
2008-01-01	18.5557
2008-04-01	21.0050
2008-07-01	23.6577
2008-10-01	21.0612
2009-01-01	20.6949
2009-04-01	18.2916
2009-07-01	15.3068
2009-10-01	17.3155
2010-01-01	15.3736
2010-04-01	14.7081
2010-07-01	15.8159
2010-10-01	14.1604
2011-01-01	18.4389
2011-04-01	19.1351
2011-07-01	18.3833
2011-10-01	15.5507
2012-01-01	13.9687
2012-04-01	13.0235
2012-07-01	12.8642
2012-10-01	11.8754
2013-01-01	12.1757
2013-04-01	12.1518
2013-07-01	11.3596
2013-10-01	9.5963
2014-01-01	8.6070
2014-04-01	8.7812
2014-07-01	8.6590
2014-10-01	9.2106
2015-01-01	8.2453
2015-04-01	7.3815