Quarterly Billions of US Dollars
1968-07-01 0.040
1971-01-01 0.086
1971-04-01 0.051
1971-07-01 0.025
1971-10-01 0.081
1972-01-01 0.203
1972-04-01 0.143
1972-07-01 0.219
1972-10-01 0.386
1973-01-01 0.161
1973-04-01 0.392
1973-07-01 0.130
1973-10-01 0.531
1974-01-01 0.180
1974-04-01 0.493
1974-07-01 0.067
1974-10-01 0.166
1975-01-01 0.337
1975-04-01 0.553
1975-07-01 0.187
1975-10-01 0.209
1976-01-01 0.187
1976-04-01 0.459
1976-07-01 0.657
1976-10-01 0.563
1977-01-01 0.654
1977-04-01 0.864
1977-07-01 1.285
1977-10-01 1.488
1978-01-01 1.744
1978-04-01 1.356
1978-07-01 0.901
1978-10-01 1.223
1979-01-01 1.080
1979-04-01 0.731
1979-07-01 0.816
1979-10-01 0.245
1980-01-01 -0.089
1980-04-01 0.609
1980-07-01 0.591
1980-10-01 0.259
1981-01-01 0.165
1981-04-01 0.691
1981-07-01 0.677
1981-10-01 0.973
1982-01-01 1.037
1982-04-01 0.242
1982-07-01 -0.064
1982-10-01 0.467
1983-01-01 -0.305
1983-04-01 0.126
1983-07-01 1.296
1983-10-01 -0.056
1984-01-01 0.260
1984-04-01 0.071
1984-07-01 0.239
1984-10-01 1.302
1985-01-01 0.988
1985-04-01 2.223
1985-07-01 0.714
1985-10-01 -0.157
1986-01-01 1.149
1986-04-01 0.433
1986-07-01 0.111
1986-10-01 -0.461
1987-01-01 0.270
1987-04-01 -0.252
1987-07-01 -0.145
1987-10-01 -0.202
1988-01-01 0.412
1988-04-01 -0.732
1988-07-01 0.478
1988-10-01 0.825
1989-01-01 0.474
1989-04-01 -0.254
1989-07-01 2.061
1989-10-01 0.769
1990-01-01 36.120
1990-04-01 0.582
1990-07-01 0.860
1990-10-01 16.705
1991-01-01 2.049
1991-04-01 3.953
1991-07-01 1.480
1991-10-01 4.365
1992-01-01 4.599
1992-04-01 2.607
1992-07-01 3.604
1992-10-01 6.171
1993-01-01 3.739
1993-04-01 23.635
1993-07-01 7.142
1993-10-01 24.595
1994-01-01 12.570
1994-04-01 48.386
1994-07-01 13.056
1994-10-01 12.868
1995-01-01 5.200
1995-04-01 5.258
1995-07-01 12.229
1995-10-01 7.600
1996-01-01 13.182
1996-04-01 17.803
1996-07-01 19.816
1996-10-01 24.107
1997-01-01 25.640
1997-04-01 32.716
1997-07-01 28.542
1997-10-01 8.860
1998-01-01 11.521
1998-04-01 25.655
1998-07-01 6.880
1998-10-01 -22.324
1999-01-01 4.908
1999-04-01 17.253
1999-07-01 2.722
1999-10-01 11.994
2000-01-01 22.072
2000-04-01 0.771
2000-07-01 36.370
2000-10-01 -4.875
2001-01-01 11.345
2001-04-01 -0.218
2001-07-01 3.034
2001-10-01 -0.225
2002-01-01 10.593
2002-04-01 5.476
2002-07-01 3.951
2002-10-01 7.102
2003-01-01 1.815
2003-04-01 9.352
2003-07-01 15.341
2003-10-01 14.642
2004-01-01 24.572
2004-04-01 14.011
2004-07-01 13.718
2004-10-01 20.681
2005-01-01 29.030
2005-04-01 -3.736
2005-07-01 16.449
2005-10-01 33.649
2006-01-01 38.092
2006-04-01 -0.215
2006-07-01 26.669
2006-10-01 62.471
2007-01-01 45.670
2007-04-01 63.761
2007-07-01 5.863
2007-10-01 33.566
2008-01-01 -5.598
2008-04-01 41.135
2008-07-01 10.235
2008-10-01 -23.340
2009-01-01 -2.599
2009-04-01 25.867
2009-07-01 48.276
2009-10-01 56.548
2010-01-01 33.817
2010-04-01 33.022
2010-07-01 66.209
2010-10-01 71.646
2011-01-01 68.032
2011-04-01 63.574
2011-07-01 17.132
2011-10-01 51.293
2012-01-01 79.775
2012-04-01 65.743
2012-07-01 93.742
2012-10-01 102.167
2013-01-01 69.744
2013-04-01 95.981
2013-07-01 62.920
2013-10-01 107.522
2014-01-01 50.422
2014-04-01 99.081
2014-07-01 67.613
2014-10-01 87.424
2015-01-01 47.739
2015-04-01 90.368