Quarterly Billions of US Dollars
1987-01-01 -1.129
1987-04-01 0.063
1987-07-01 0.055
1987-10-01 -0.526
1988-01-01 -0.880
1988-04-01 -0.310
1988-07-01 0.391
1988-10-01 -0.220
1989-01-01 0.654
1989-04-01 0.182
1989-07-01 0.946
1989-10-01 1.085
1990-01-01 0.140
1990-04-01 -0.541
1990-07-01 2.015
1990-10-01 -0.015
1991-01-01 -0.095
1991-04-01 -0.591
1991-07-01 0.953
1991-10-01 0.132
1992-01-01 -2.131
1992-04-01 -0.692
1992-07-01 1.291
1992-10-01 0.275
1993-01-01 1.211
1993-04-01 0.017
1993-07-01 2.389
1993-10-01 3.106
1994-01-01 1.741
1994-04-01 1.307
1994-07-01 0.794
1994-10-01 3.274
1995-01-01 0.501
1995-04-01 3.716
1995-07-01 2.978
1995-10-01 1.287
1996-01-01 6.418
1996-04-01 7.694
1996-07-01 5.109
1996-10-01 19.269
1997-01-01 8.945
1997-04-01 11.561
1997-07-01 17.989
1997-10-01 19.529
1998-01-01 7.906
1998-04-01 20.140
1998-07-01 10.801
1998-10-01 4.303
1999-01-01 12.343
1999-04-01 12.418
1999-07-01 17.612
1999-10-01 6.901
2000-01-01 10.008
2000-04-01 9.677
2000-07-01 14.288
2000-10-01 15.083
2001-01-01 18.557
2001-04-01 16.904
2001-07-01 14.688
2001-10-01 13.862
2002-01-01 5.162
2002-04-01 6.392
2002-07-01 5.472
2002-10-01 3.998
2003-01-01 -4.429
2003-04-01 0.254
2003-07-01 6.340
2003-10-01 9.422
2004-01-01 5.510
2004-04-01 6.343
2004-07-01 0.425
2004-10-01 5.935
2005-01-01 8.669
2005-04-01 10.605
2005-07-01 16.014
2005-10-01 41.711
2006-01-01 46.798
2006-04-01 50.353
2006-07-01 71.782
2006-10-01 120.455
2007-01-01 104.659
2007-04-01 112.084
2007-07-01 52.675
2007-10-01 23.713
2008-01-01 -6.079
2008-04-01 6.974
2008-07-01 4.671
2008-10-01 -7.262
2009-01-01 -10.353
2009-04-01 6.031
2009-07-01 6.638
2009-10-01 6.486
2010-01-01 5.393
2010-04-01 -6.211
2010-07-01 16.533
2010-10-01 13.244
2011-01-01 6.770
2011-04-01 2.534
2011-07-01 0.847
2011-10-01 9.679
2012-01-01 20.660
2012-04-01 21.580
2012-07-01 18.240
2012-10-01 32.052
2013-01-01 17.552
2013-04-01 39.108
2013-07-01 5.290
2013-10-01 29.462
2014-01-01 22.845
2014-04-01 48.583
2014-07-01 37.858
2014-10-01 33.993
2015-01-01 32.153
2015-04-01 36.851