Quarterly Billions of US Dollars
1987-04-01 -0.0670
1988-07-01 -0.0750
1989-01-01 0.0744
1990-04-01 0.2500
1990-07-01 0.3007
1990-10-01 0.4500
1991-04-01 -0.0169
1992-04-01 -0.2669
1993-01-01 -0.0413
1993-07-01 -0.0338
1993-10-01 -0.0883
1994-10-01 0.0806
1995-01-01 0.1169
1995-04-01 -0.4090
1995-07-01 -0.3186
1995-10-01 -0.0100
1996-01-01 0.1326
1996-10-01 0.4683
1997-01-01 0.2961
1997-04-01 -0.0043
1997-10-01 0.8548
1998-01-01 0.2582
1998-04-01 1.8041
1998-07-01 0.0422
1998-10-01 0.6262
1999-01-01 0.8489
1999-04-01 1.7550
1999-07-01 -0.0719
1999-10-01 0.8051
2000-01-01 1.3844
2000-04-01 0.7470
2000-07-01 -0.0088
2000-10-01 0.5810
2001-01-01 0.6901
2001-04-01 2.1617
2001-07-01 1.0635
2001-10-01 3.0790
2002-01-01 0.2779
2002-04-01 4.3937
2002-07-01 0.6284
2002-10-01 1.5898
2003-01-01 4.1716
2003-04-01 4.4135
2003-07-01 1.3705
2003-10-01 10.5693
2004-01-01 2.5984
2004-04-01 6.4573
2004-07-01 2.1214
2004-10-01 10.1992
2005-01-01 4.3660
2005-04-01 13.3523
2005-07-01 5.2846
2005-10-01 16.3311
2006-01-01 21.2288
2006-04-01 28.8748
2006-07-01 9.8414
2006-10-01 14.4321
2007-01-01 20.0624
2007-04-01 19.4393
2007-07-01 18.2921
2007-10-01 4.8644
2008-01-01 6.2699
2008-04-01 24.8386
2008-07-01 9.5376
2008-10-01 28.6927
2009-01-01 27.8813
2009-04-01 19.0632
2009-07-01 19.3402
2009-10-01 11.3237
2010-01-01 6.2311
2010-04-01 4.8087
2010-07-01 18.7152
2010-10-01 7.4081
2011-01-01 20.6374
2011-04-01 9.9105
2011-07-01 9.1796
2011-10-01 6.7681
2012-01-01 37.7413
2012-04-01 -8.2274
2012-07-01 -5.6889
2012-10-01 20.6280
2013-01-01 -2.9920
2013-04-01 -3.0185
2013-07-01 -2.3600
2013-10-01 -3.3706
2014-01-01 -20.6991
2014-04-01 -1.5371
2014-07-01 -15.1050
2014-10-01 -6.5801
2015-01-01 -1.9048
2015-04-01 -6.1236