Quarter	Billions of US Dollars
1993-07-01	11.5309
1993-10-01	3.0152
1994-01-01	0.1640
1994-04-01	2.9656
1994-07-01	4.1770
1994-10-01	-0.5691
1995-01-01	5.5723
1995-04-01	2.4868
1995-07-01	4.4617
1995-10-01	3.1105
1996-01-01	-0.3306
1996-04-01	3.8702
1996-07-01	2.4725
1996-10-01	5.8904
1997-01-01	-1.9244
1997-04-01	1.5772
1997-07-01	3.2548
1997-10-01	1.5778
1998-01-01	1.2625
1998-04-01	0.6704
1998-07-01	3.8196
1998-10-01	-2.2144
1999-01-01	7.0651
1999-04-01	-1.8878
1999-07-01	10.6537
1999-10-01	2.1617
2000-01-01	6.9133
2000-04-01	17.1451
2000-07-01	5.6962
2000-10-01	10.0208
2001-01-01	-4.0337
2001-04-01	-11.5877
2001-07-01	-14.4348
2001-10-01	1.8472
2002-01-01	-0.4833
2002-04-01	-3.4249
2002-07-01	18.9118
2002-10-01	-8.7112
2003-01-01	15.1069
2003-04-01	13.1206
2003-07-01	-0.8088
2003-10-01	12.9374
2004-01-01	6.7091
2004-04-01	9.4911
2004-07-01	10.3588
2004-10-01	0.0604
2005-01-01	-0.3572
2005-04-01	12.0634
2005-07-01	20.9232
2005-10-01	-7.6758
2006-01-01	16.1802
2006-04-01	3.5936
2006-07-01	19.4886
2006-10-01	18.8052
2007-01-01	31.6375
2007-04-01	0.0980
2007-07-01	21.4358
2007-10-01	-2.8943
2008-01-01	48.6394
2008-04-01	-2.9264
2008-07-01	-39.0285
2008-10-01	0.2766
2009-01-01	-20.2991
2009-04-01	-35.7561
2009-07-01	11.6568
2009-10-01	-58.5030
2010-01-01	26.9544
2010-04-01	-24.5182
2010-07-01	27.4539
2010-10-01	-55.7622
2011-01-01	14.5600
2011-04-01	-7.9754
2011-07-01	-11.9693
2011-10-01	-18.0000
2012-01-01	32.6022
2012-04-01	-5.7788
2012-07-01	7.1738
2012-10-01	-13.5912
2013-01-01	1.5570
2013-04-01	-0.0038
2013-07-01	3.6885
2013-10-01	12.1662
2014-01-01	-0.2107
2014-04-01	12.9439
2014-07-01	17.4051
2014-10-01	-3.3049
2015-01-01	8.8210
2015-04-01	-5.3069