Quarter	Billions of US Dollars
1993-07-01	7.3689
1993-10-01	4.1666
1994-01-01	3.6225
1994-04-01	3.9833
1994-07-01	3.6582
1994-10-01	1.4821
1995-01-01	0.5380
1995-04-01	0.4399
1995-07-01	0.8197
1995-10-01	1.3203
1996-01-01	3.2691
1996-04-01	2.8506
1996-07-01	2.2025
1996-10-01	0.4688
1997-01-01	1.2546
1997-04-01	0.7852
1997-07-01	0.7403
1997-10-01	0.6437
1998-01-01	1.5444
1998-04-01	1.1548
1998-07-01	0.5384
1998-10-01	1.2057
1999-01-01	0.8942
1999-04-01	3.0582
1999-07-01	0.6458
1999-10-01	1.1754
2000-01-01	0.5367
2000-04-01	0.0754
2000-07-01	0.0043
2000-10-01	0.1866
2001-01-01	1.0940
2001-04-01	2.2599
2001-07-01	1.2925
2001-10-01	2.7232
2002-01-01	3.3067
2002-04-01	4.0116
2002-07-01	2.6567
2002-10-01	3.1152
2003-01-01	4.2123
2003-04-01	10.2740
2003-07-01	5.6063
2003-10-01	5.2354
2004-01-01	5.9491
2004-04-01	4.7353
2004-07-01	6.3928
2004-10-01	7.4483
2005-01-01	6.9782
2005-04-01	3.0482
2005-07-01	7.4496
2005-10-01	6.1229
2006-01-01	10.8403
2006-04-01	10.9627
2006-07-01	6.9151
2006-10-01	10.3565
2007-01-01	18.1351
2007-04-01	17.7539
2007-07-01	13.3851
2007-10-01	11.8785
2008-01-01	16.4484
2008-04-01	19.4205
2008-07-01	2.2813
2008-10-01	8.9871
2009-01-01	10.1868
2009-04-01	10.0617
2009-07-01	8.7336
2009-10-01	10.1481
2010-01-01	8.7912
2010-04-01	11.9995
2010-07-01	12.2149
2010-10-01	10.4149
2011-01-01	10.7938
2011-04-01	13.1570
2011-07-01	5.5022
2011-10-01	8.3757
2012-01-01	6.7220
2012-04-01	3.2833
2012-07-01	3.3628
2012-10-01	2.7205
2013-01-01	3.5699
2013-04-01	5.2458
2013-07-01	6.6555
2013-10-01	7.3684
2014-01-01	2.4894
2014-04-01	4.6444
2014-07-01	2.0913
2014-10-01	3.3420
2015-01-01	2.9487
2015-04-01	3.7453