Quarter	Billions of US Dollars
1993-07-01	0.6974
1993-10-01	0.5242
1994-01-01	1.5763
1994-04-01	0.1899
1994-07-01	0.5973
1994-10-01	1.0740
1995-01-01	1.2307
1995-04-01	1.6143
1995-07-01	0.3873
1995-10-01	1.5775
1996-01-01	1.2106
1996-04-01	1.4229
1996-07-01	0.7256
1996-10-01	2.1707
1997-01-01	1.4024
1997-04-01	1.5455
1997-07-01	0.5540
1997-10-01	3.6649
1998-01-01	0.9779
1998-04-01	0.3335
1998-07-01	0.4235
1998-10-01	0.1577
1999-01-01	0.4073
1999-04-01	0.9179
1999-07-01	1.3033
1999-10-01	0.1112
2000-01-01	0.0765
2000-04-01	0.7311
2000-07-01	0.8164
2000-10-01	0.1971
2001-01-01	0.4520
2001-04-01	0.7287
2001-07-01	0.2605
2001-10-01	0.5145
2002-01-01	0.4032
2002-04-01	1.9076
2002-07-01	0.6469
2002-10-01	1.1463
2003-01-01	0.9920
2003-04-01	2.2573
2003-07-01	1.2592
2003-10-01	0.2819
2004-01-01	1.0795
2004-04-01	5.3281
2004-07-01	2.9034
2004-10-01	0.9505
2005-01-01	1.5388
2005-04-01	1.9186
2005-07-01	0.5164
2005-10-01	1.2287
2006-01-01	1.0141
2006-04-01	0.6899
2006-07-01	0.6360
2006-10-01	1.2052
2007-01-01	0.4076
2007-04-01	0.7073
2007-07-01	0.9208
2007-10-01	0.4545
2008-01-01	0.2970
2008-04-01	1.0032
2008-07-01	0.8631
2008-10-01	1.3650
2009-01-01	16.2698
2009-04-01	6.5786
2009-07-01	7.5420
2009-10-01	0.8876
2010-01-01	13.2071
2010-04-01	5.8954
2010-07-01	5.2604
2010-10-01	3.4871
2011-01-01	8.1592
2011-04-01	5.5440
2011-07-01	5.1308
2011-10-01	4.4168
2012-01-01	11.1387
2012-04-01	5.0717
2012-07-01	8.3338
2012-10-01	5.3703
2013-01-01	15.5877
2013-04-01	9.5942
2013-07-01	11.2529
2013-10-01	6.5521
2014-01-01	22.7358
2014-04-01	17.8403
2014-07-01	5.1924
2014-10-01	5.9763
2015-01-01	11.9002
2015-04-01	6.4509