Quarter	Billions of US Dollars
1989-10-01	0.4380
1990-01-01	-0.0950
1990-04-01	-0.2190
1990-07-01	0.3270
1990-10-01	0.3640
1991-01-01	-0.2760
1991-04-01	-0.1100
1991-07-01	-0.1460
1991-10-01	0.4450
1992-01-01	-0.2960
1992-04-01	0.0970
1992-07-01	0.8270
1992-10-01	-0.0800
1993-01-01	-0.3800
1993-04-01	0.1590
1993-07-01	2.8941
1993-10-01	-0.4277
1994-01-01	0.0428
1994-04-01	-0.4471
1994-07-01	0.2808
1994-10-01	-0.7279
1995-01-01	0.3024
1995-04-01	0.7823
1995-07-01	-0.1426
1995-10-01	-0.3348
1996-01-01	0.9826
1996-04-01	-0.4092
1996-07-01	1.4919
1996-10-01	0.8858
1997-01-01	0.7344
1997-04-01	1.9124
1997-07-01	-0.3158
1997-10-01	-1.2457
1998-01-01	-0.5205
1998-04-01	-0.7043
1998-07-01	1.5113
1998-10-01	0.0577
1999-01-01	-1.0476
1999-04-01	-0.4498
1999-07-01	-0.2160
1999-10-01	1.3957
2000-01-01	1.3376
2000-04-01	0.9802
2000-07-01	0.8367
2000-10-01	0.9082
2001-01-01	0.4884
2001-04-01	-3.5454
2001-07-01	-1.3279
2001-10-01	-0.8322
2002-01-01	-0.1394
2002-04-01	1.5088
2002-07-01	0.5499
2002-10-01	0.2451
2003-01-01	0.1341
2003-04-01	-0.5835
2003-07-01	0.5110
2003-10-01	0.6091
2004-01-01	2.5557
2004-04-01	-1.6711
2004-07-01	0.4642
2004-10-01	-1.2836
2005-01-01	1.7762
2005-04-01	0.4239
2005-07-01	1.9886
2005-10-01	0.2689
2006-01-01	3.0497
2006-04-01	4.6077
2006-07-01	-0.3815
2006-10-01	-0.0028
2007-01-01	5.0069
2007-04-01	1.0942
2007-07-01	-0.1113
2007-10-01	4.5911
2008-01-01	-1.0800
2008-04-01	-1.0275
2008-07-01	9.5875
2008-10-01	-15.5709
2009-01-01	-1.7858
2009-04-01	-0.4773
2009-07-01	-1.7835
2009-10-01	-2.3576
2010-01-01	1.4883
2010-04-01	-0.1679
2010-07-01	0.2372
2010-10-01	0.7806
2011-01-01	-0.4338
2011-04-01	3.5712
2011-07-01	-2.5797
2011-10-01	-2.5163
2012-01-01	1.1172
2012-04-01	2.8672
2012-07-01	-1.0888
2012-10-01	-0.4822
2013-01-01	0.3718
2013-04-01	4.3996
2013-07-01	1.9140
2013-10-01	2.9664
2014-01-01	5.6859
2014-04-01	2.0752
2014-07-01	0.5988
2014-10-01	-1.9157
2015-01-01	-3.3174
2015-04-01	-0.7954