Quarter	Billions of US Dollars
1993-07-01	-14.2388
1993-10-01	-8.4890
1994-01-01	1.4748
1994-04-01	-7.0321
1994-07-01	-9.4903
1994-10-01	-9.4167
1995-01-01	-4.6482
1995-04-01	-7.1651
1995-07-01	-8.7717
1995-10-01	-1.8455
1996-01-01	-1.8018
1996-04-01	-5.7065
1996-07-01	-2.9577
1996-10-01	-6.2591
1997-01-01	-3.8503
1997-04-01	-2.7974
1997-07-01	-3.2943
1997-10-01	-6.9101
1998-01-01	-7.0115
1998-04-01	-4.5787
1998-07-01	-2.4357
1998-10-01	-1.3422
1999-01-01	-1.4152
1999-04-01	0.6472
1999-07-01	-0.9112
1999-10-01	-2.3199
2000-01-01	-2.4289
2000-04-01	-0.7078
2000-07-01	-1.7225
2000-10-01	-1.4013
2001-01-01	-0.6340
2001-04-01	0.0781
2001-07-01	-0.7024
2001-10-01	-0.1839
2002-01-01	-0.0468
2002-04-01	-0.2001
2002-07-01	0.2145
2002-10-01	-0.5242
2003-01-01	-0.1936
2003-07-01	-0.8576
2003-10-01	-0.1530
2004-01-01	-0.7230
2004-04-01	-0.9934
2004-07-01	-0.0620
2004-10-01	-0.2432
2005-01-01	-0.0362
2005-04-01	-0.4447
2005-07-01	0.0190
2005-10-01	0.6025
2006-04-01	-0.0050
2006-07-01	-0.2444
2006-10-01	-0.0825
2007-01-01	-0.0383
2007-04-01	-0.3924
2007-07-01	-0.2250
2007-10-01	0.0180
2008-04-01	-1.0307
2008-07-01	-0.2600
2009-01-01	-0.0694
2009-04-01	-0.4402
2009-07-01	-0.2930
2010-01-01	-0.1581
2010-04-01	-0.3261
2010-07-01	-0.0190
2011-01-01	-0.4050
2011-04-01	-0.1500
2011-10-01	-0.1000
2012-10-01	-0.1500
2013-07-01	-0.0927
2013-10-01	-0.1361