Quarter	Billions of US Dollars
1993-07-01	17.0882
1993-10-01	17.7555
1994-01-01	14.6166
1994-04-01	53.8380
1994-07-01	22.4570
1994-10-01	18.1082
1995-01-01	15.4699
1995-04-01	15.2192
1995-07-01	15.6546
1995-10-01	2.1874
1996-01-01	15.7453
1996-04-01	4.1581
1996-07-01	17.0778
1996-10-01	8.3499
1997-01-01	20.0393
1997-04-01	18.1257
1997-07-01	19.0946
1997-10-01	-11.5162
1998-01-01	13.4141
1998-04-01	19.0952
1998-07-01	10.1456
1998-10-01	-21.0816
1999-01-01	3.1053
1999-04-01	16.4122
1999-07-01	-0.2815
1999-10-01	6.1793
2000-01-01	16.4128
2000-04-01	1.9298
2000-07-01	40.7492
2000-10-01	-1.9892
2001-01-01	20.3483
2001-04-01	6.0980
2001-07-01	-1.2718
2001-10-01	4.8222
2002-01-01	36.2912
2002-04-01	-3.9335
2002-07-01	6.5630
2002-10-01	5.9771
2003-01-01	25.4883
2003-04-01	25.1714
2003-07-01	10.0052
2003-10-01	5.3985
2004-01-01	24.6148
2004-04-01	18.9782
2004-07-01	3.5655
2004-10-01	9.7292
2005-01-01	33.5498
2005-04-01	-2.1354
2005-07-01	-2.5385
2005-10-01	21.5095
2006-01-01	29.7046
2006-04-01	-5.0581
2006-07-01	0.8974
2006-10-01	4.4784
2007-01-01	22.6515
2007-04-01	24.0287
2007-07-01	-15.8861
2007-10-01	-1.8843
2008-01-01	8.0616
2008-04-01	23.9325
2008-07-01	-35.2824
2008-10-01	-9.5332
2009-01-01	53.6419
2009-04-01	74.7807
2009-07-01	18.1022
2009-10-01	39.0892
2010-01-01	46.0080
2010-04-01	33.1257
2010-07-01	18.3340
2010-10-01	25.3048
2011-01-01	26.4067
2011-04-01	23.3932
2011-07-01	0.9878
2011-10-01	7.1976
2012-01-01	-23.1644
2012-04-01	29.0714
2012-07-01	-10.5797
2012-10-01	31.3345
2013-01-01	1.7547
2013-04-01	8.2073
2013-07-01	25.4758
2013-10-01	22.1504
2014-01-01	7.2692
2014-04-01	18.2609
2014-07-01	18.2132
2014-10-01	15.6863
2015-01-01	8.7266
2015-04-01	-1.8674