Quarter	Billions of US Dollars
1987-01-01	-0.0665
1987-04-01	-0.0198
1987-07-01	-0.0284
1988-01-01	-0.1250
1989-01-01	-0.0791
1989-07-01	-0.0004
1990-01-01	-0.0237
1990-04-01	0.6272
1990-07-01	0.1000
1990-10-01	0.3297
1991-01-01	0.8723
1991-04-01	0.0527
1991-07-01	0.0750
1991-10-01	0.2400
1992-01-01	0.2355
1992-04-01	0.0791
1992-07-01	0.1934
1992-10-01	0.4098
1993-04-01	0.1199
1993-07-01	0.3368
1993-10-01	1.0811
1994-01-01	0.7076
1994-04-01	1.0259
1994-07-01	0.8460
1994-10-01	0.2954
1995-01-01	-0.7233
1995-04-01	0.1567
1995-07-01	0.4747
1995-10-01	0.0437
1996-01-01	0.2128
1996-04-01	0.8808
1996-07-01	0.7248
1996-10-01	-0.3548
1997-01-01	-0.1186
1997-04-01	2.1054
1997-07-01	0.4172
1997-10-01	0.0434
1998-01-01	-0.1280
1998-04-01	2.4361
1998-07-01	0.9959
1998-10-01	0.8564
1999-01-01	0.5669
1999-04-01	1.3304
1999-07-01	1.4141
1999-10-01	0.4398
2000-01-01	1.3098
2000-04-01	-1.2098
2000-07-01	0.0436
2000-10-01	-0.6002
2001-01-01	0.4107
2001-04-01	0.6222
2001-07-01	1.3544
2001-10-01	1.7813
2002-01-01	2.9926
2002-04-01	0.1685
2002-07-01	2.0694
2002-10-01	0.5508
2003-01-01	1.0502
2003-04-01	2.6254
2003-07-01	3.8355
2003-10-01	-0.2497
2004-01-01	1.0099
2004-04-01	1.6417
2004-07-01	1.7570
2004-10-01	0.0037
2005-01-01	0.9640
2005-04-01	-1.4935
2005-07-01	1.1660
2005-10-01	1.0905
2006-01-01	1.1549
2006-04-01	0.2247
2006-07-01	0.1363
2006-10-01	6.6035
2007-01-01	4.9430
2007-04-01	3.4972
2007-07-01	-3.6717
2007-10-01	4.8632
2008-01-01	1.9452
2008-04-01	5.8753
2008-07-01	0.3754
2008-10-01	-2.4964
2009-01-01	-1.6588
2009-04-01	-0.7837
2009-07-01	3.7920
2009-10-01	10.1170
2010-01-01	2.4450
2010-04-01	-0.6937
2010-07-01	5.9284
2010-10-01	-0.6626
2011-01-01	8.4244
2011-04-01	3.1515
2011-07-01	-0.2759
2011-10-01	3.5812
2012-01-01	14.1207
2012-04-01	2.9847
2012-07-01	2.6588
2012-10-01	4.2644
2013-01-01	2.2995
2013-04-01	14.8279
2013-07-01	1.7169
2013-10-01	-0.3578
2014-01-01	14.5202
2014-04-01	12.2623
2014-07-01	1.5790
2014-10-01	-2.0546
2015-01-01	-2.1349
2015-04-01	1.1191