Quarter	Billions of US Dollars
1993-07-01	2.1833
1993-10-01	-0.1855
1994-01-01	-0.0223
1994-04-01	-0.0787
1994-07-01	-0.3199
1994-10-01	-0.3919
1995-01-01	0.1335
1995-04-01	0.4214
1995-07-01	-0.1724
1995-10-01	0.2217
1996-01-01	0.4311
1996-04-01	0.5401
1996-07-01	-1.1071
1996-10-01	-0.5113
1997-01-01	-0.2162
1997-04-01	0.0332
1997-07-01	1.1790
1997-10-01	0.0994
1998-01-01	-0.1139
1998-04-01	0.6578
1998-07-01	-0.2149
1998-10-01	0.8949
1999-01-01	-0.6349
1999-04-01	1.0412
1999-07-01	0.0885
1999-10-01	0.4691
2000-01-01	0.6263
2000-04-01	10.6705
2000-07-01	9.7047
2000-10-01	2.3084
2001-01-01	-1.3482
2001-04-01	-4.6780
2001-07-01	-8.7864
2001-10-01	-1.6148
2002-01-01	-2.1437
2002-04-01	-2.2694
2002-07-01	-0.9213
2002-10-01	-0.7834
2003-01-01	-0.0439
2003-04-01	0.1758
2003-07-01	-0.8381
2003-10-01	-0.6873
2004-01-01	-0.8129
2004-04-01	0.9935
2004-07-01	0.3197
2004-10-01	-0.6174
2005-01-01	0.4095
2005-04-01	-0.0602
2005-07-01	-0.4133
2005-10-01	-0.2602
2006-01-01	-0.4509
2006-04-01	0.1453
2006-07-01	0.5686
2006-10-01	-0.6677
2007-01-01	-0.0209
2007-04-01	0.2609
2007-07-01	-0.8412
2007-10-01	0.1536
2008-01-01	-0.0468
2008-04-01	0.4998
2008-07-01	0.0826
2008-10-01	0.4284
2009-01-01	-0.5318
2009-04-01	-0.6102
2009-07-01	-0.5581
2009-10-01	-0.6526
2010-01-01	-0.2234
2010-04-01	0.0446
2010-07-01	0.2453
2010-10-01	-0.1224
2011-01-01	0.1191
2011-04-01	1.7702
2011-07-01	-0.9012
2011-10-01	0.2496
2012-01-01	0.3033
2012-04-01	0.1248
2012-07-01	-0.1653
2012-10-01	0.6648
2013-01-01	-0.8780
2013-04-01	0.5808
2013-07-01	0.7519
2013-10-01	-0.3899
2014-01-01	0.0999
2014-04-01	-0.6016
2014-07-01	-0.0295
2014-10-01	-0.1653
2015-01-01	0.2090
2015-04-01	0.0015