Quarter	Billions of US Dollars
1989-10-01	-0.0940
1990-01-01	0.2820
1990-04-01	0.1330
1990-07-01	1.4830
1990-10-01	-0.5390
1991-01-01	1.1310
1991-04-01	0.1740
1991-07-01	-0.5170
1991-10-01	-0.5050
1992-01-01	1.0470
1992-04-01	-0.2390
1992-07-01	-0.0910
1992-10-01	-0.7580
1993-01-01	1.1230
1993-04-01	0.8670
1993-07-01	3.3954
1993-10-01	1.2572
1994-01-01	0.5085
1994-04-01	-0.5962
1994-07-01	-0.2470
1994-10-01	0.9888
1995-01-01	0.0684
1995-04-01	-0.1589
1995-07-01	1.5332
1995-10-01	1.2773
1996-01-01	1.3836
1996-04-01	-0.4950
1996-07-01	-1.2620
1996-10-01	-0.2469
1997-01-01	2.2356
1997-04-01	-0.3834
1997-07-01	0.4473
1997-10-01	2.6382
1998-01-01	0.9057
1998-04-01	0.3453
1998-07-01	1.1270
1998-10-01	0.7207
1999-01-01	0.7670
1999-04-01	3.3920
1999-07-01	1.9640
1999-10-01	3.8482
2000-01-01	1.8031
2000-04-01	2.0328
2000-07-01	1.6234
2000-10-01	6.9751
2001-01-01	2.4127
2001-04-01	3.7633
2001-07-01	-5.1157
2001-10-01	2.0511
2002-01-01	2.9768
2002-04-01	6.9240
2002-07-01	0.3785
2002-10-01	-1.1167
2003-01-01	8.1564
2003-04-01	3.9706
2003-07-01	-3.7910
2003-10-01	7.6428
2004-01-01	0.7167
2004-04-01	4.9595
2004-07-01	1.7740
2004-10-01	7.7839
2005-01-01	3.5158
2005-04-01	13.4204
2005-07-01	7.9243
2005-10-01	5.0311
2006-01-01	11.7605
2006-04-01	-3.9306
2006-07-01	-1.8474
2006-10-01	6.8164
2007-01-01	14.2550
2007-04-01	3.5003
2007-07-01	-21.9962
2007-10-01	6.3027
2008-01-01	19.3128
2008-04-01	15.9026
2008-07-01	-34.5027
2008-10-01	38.5125
2009-01-01	-7.1555
2009-04-01	-18.4888
2009-07-01	-8.5652
2009-10-01	-29.5127
2010-01-01	6.8271
2010-04-01	-6.6325
2010-07-01	11.5213
2010-10-01	16.5976
2011-01-01	18.7734
2011-04-01	10.0907
2011-07-01	-4.8125
2011-10-01	3.3975
2012-01-01	17.9362
2012-04-01	-11.5846
2012-07-01	-11.1296
2012-10-01	-0.3213
2013-01-01	14.9555
2013-04-01	2.0221
2013-07-01	-4.1364
2013-10-01	-3.7294
2014-01-01	-3.4818
2014-04-01	6.8467
2014-07-01	2.5425
2014-10-01	2.9352
2015-01-01	2.8871
2015-04-01	-8.9390