Quarter	Billions of US Dollars
1993-07-01	4.7944
1993-10-01	6.5899
1994-01-01	9.4155
1994-04-01	3.9858
1994-07-01	3.7020
1994-10-01	1.6664
1995-01-01	1.3923
1995-04-01	2.1811
1995-07-01	5.4892
1995-10-01	1.1352
1996-01-01	8.8339
1996-04-01	10.3771
1996-07-01	6.3976
1996-10-01	8.6635
1997-01-01	6.9542
1997-04-01	11.1882
1997-07-01	8.3051
1997-10-01	5.2061
1998-01-01	11.4561
1998-04-01	10.8335
1998-07-01	9.5574
1998-10-01	8.1848
1999-01-01	7.3052
1999-04-01	13.5657
1999-07-01	7.2867
1999-10-01	9.9681
2000-01-01	9.4512
2000-04-01	9.2787
2000-07-01	14.5506
2000-10-01	12.5168
2001-01-01	13.9605
2001-04-01	12.9987
2001-07-01	9.7717
2001-10-01	21.0532
2002-01-01	5.8938
2002-04-01	16.8465
2002-07-01	4.4903
2002-10-01	6.1282
2003-01-01	16.0881
2003-04-01	13.0075
2003-07-01	25.2681
2003-10-01	21.9329
2004-01-01	15.6682
2004-04-01	16.2458
2004-07-01	7.1242
2004-10-01	8.2427
2005-01-01	14.7958
2005-04-01	5.2897
2005-07-01	5.9763
2005-10-01	10.8936
2006-01-01	16.1574
2006-04-01	9.5131
2006-07-01	8.3158
2006-10-01	13.7935
2007-01-01	15.1048
2007-04-01	26.0373
2007-07-01	18.4118
2007-10-01	19.5003
2008-01-01	13.1714
2008-04-01	22.5569
2008-07-01	8.4348
2008-10-01	11.7441
2009-01-01	4.9413
2009-04-01	19.5354
2009-07-01	14.7762
2009-10-01	16.9287
2010-01-01	11.7209
2010-04-01	12.5002
2010-07-01	19.1694
2010-10-01	15.0989
2011-01-01	15.0187
2011-04-01	16.9238
2011-07-01	9.2445
2011-10-01	8.1754
2012-01-01	16.5822
2012-04-01	7.8171
2012-07-01	16.8051
2012-10-01	16.5469
2013-01-01	20.5978
2013-04-01	19.5463
2013-07-01	19.9447
2013-10-01	46.0450
2014-01-01	19.9203
2014-04-01	37.3144
2014-07-01	24.4046
2014-10-01	20.8425
2015-01-01	17.2023
2015-04-01	23.8318