Quarterly Billions of US Dollars
1987-01-01 0.111
1987-04-01 0.405
1987-07-01 0.920
1987-10-01 0.329
1988-01-01 -0.041
1988-04-01 0.452
1988-07-01 0.581
1988-10-01 0.366
1989-01-01 0.948
1989-04-01 0.257
1989-07-01 0.441
1989-10-01 0.775
1990-01-01 0.538
1990-04-01 -0.171
1990-07-01 1.210
1990-10-01 0.402
1991-01-01 0.075
1991-04-01 -0.125
1991-07-01 0.412
1991-10-01 0.592
1992-01-01 0.988
1992-04-01 0.528
1992-07-01 1.120
1992-10-01 0.242
1993-01-01 -0.289
1993-04-01 -0.214
1993-07-01 2.087
1993-10-01 3.115
1994-01-01 0.710
1994-04-01 2.091
1994-07-01 0.956
1994-10-01 0.260
1995-01-01 0.565
1995-04-01 3.506
1995-07-01 2.035
1995-10-01 1.775
1996-01-01 5.842
1996-04-01 7.376
1996-07-01 4.071
1996-10-01 16.396
1997-01-01 5.690
1997-04-01 8.989
1997-07-01 16.250
1997-10-01 17.851
1998-01-01 5.761
1998-04-01 15.191
1998-07-01 9.885
1998-10-01 4.842
1999-01-01 10.226
1999-04-01 13.026
1999-07-01 9.295
1999-10-01 8.957
2000-01-01 9.716
2000-04-01 9.128
2000-07-01 15.394
2000-10-01 10.645
2001-01-01 15.067
2001-04-01 15.046
2001-07-01 12.110
2001-10-01 15.592
2002-01-01 6.317
2002-04-01 4.556
2002-07-01 8.287
2002-10-01 2.333
2003-01-01 -3.764
2003-04-01 -1.263
2003-07-01 3.003
2003-10-01 0.359
2004-01-01 7.254
2004-04-01 5.691
2004-07-01 5.696
2004-10-01 5.847
2005-01-01 5.862
2005-04-01 8.855
2005-07-01 13.978
2005-10-01 39.072
2006-01-01 48.083
2006-04-01 48.453
2006-07-01 71.494
2006-10-01 120.860
2007-01-01 102.083
2007-04-01 102.487
2007-07-01 52.264
2007-10-01 21.378
2008-01-01 -4.357
2008-04-01 4.731
2008-07-01 1.977
2008-10-01 -4.717
2009-01-01 -12.300
2009-04-01 5.093
2009-07-01 7.796
2009-10-01 2.079
2010-01-01 3.456
2010-04-01 -6.250
2010-07-01 5.789
2010-10-01 9.070
2011-01-01 1.001
2011-04-01 -9.366
2011-07-01 -2.016
2011-10-01 8.904
2012-01-01 11.542
2012-04-01 6.503
2012-07-01 8.579
2012-10-01 25.056
2013-01-01 9.043
2013-04-01 20.479
2013-07-01 2.952
2013-10-01 19.775
2014-01-01 12.243
2014-04-01 34.258
2014-07-01 19.700
2014-10-01 22.899
2015-01-01 15.151
2015-04-01 11.413