Quarterly Billions of US Dollars
1968-04-01 0.030
1969-01-01 0.060
1970-10-01 0.015
1971-01-01 0.107
1971-04-01 0.020
1971-07-01 0.020
1971-10-01 0.120
1972-01-01 0.116
1972-04-01 0.261
1972-07-01 0.274
1972-10-01 0.186
1973-01-01 0.440
1973-04-01 0.367
1973-07-01 0.282
1973-10-01 0.235
1974-01-01 0.095
1974-04-01 0.040
1974-07-01 0.085
1974-10-01 0.095
1975-01-01 0.025
1975-04-01 0.100
1975-07-01 0.155
1975-10-01 0.107
1976-01-01 0.348
1976-04-01 0.366
1976-07-01 0.131
1976-10-01 0.285
1977-01-01 0.275
1977-04-01 0.311
1977-07-01 0.399
1977-10-01 0.253
1978-01-01 0.278
1978-04-01 0.442
1978-07-01 0.280
1978-10-01 -0.029
1979-01-01 0.153
1979-04-01 0.212
1979-07-01 0.005
1979-10-01 0.380
1980-01-01 0.107
1980-04-01 0.490
1980-07-01 0.387
1980-10-01 0.188
1981-01-01 0.050
1981-04-01 0.116
1981-07-01 0.306
1981-10-01 0.590
1982-01-01 0.032
1982-04-01 0.295
1982-07-01 0.403
1982-10-01 0.948
1983-01-01 0.646
1983-04-01 0.252
1983-07-01 0.045
1983-10-01 0.894
1984-01-01 1.354
1984-04-01 0.306
1984-07-01 0.599
1984-10-01 1.512
1985-01-01 0.463
1985-04-01 0.413
1985-07-01 1.094
1985-10-01 3.302
1986-01-01 0.668
1986-04-01 1.009
1986-07-01 1.549
1986-10-01 0.278
1987-01-01 0.608
1987-04-01 1.897
1987-07-01 0.218
1987-10-01 0.698
1988-01-01 2.019
1988-04-01 2.477
1988-07-01 3.407
1988-10-01 -0.787
1989-01-01 2.829
1989-04-01 0.827
1989-07-01 4.175
1989-10-01 3.668
1990-01-01 3.035
1990-04-01 1.733
1990-07-01 4.746
1990-10-01 3.970
1991-01-01 8.205
1991-04-01 6.423
1991-07-01 6.072
1991-10-01 3.681
1992-01-01 5.242
1992-04-01 2.884
1992-07-01 0.342
1992-10-01 9.341
1993-01-01 0.920
1993-04-01 5.942
1993-07-01 4.353
1993-10-01 5.297
1994-01-01 6.338
1994-04-01 3.045
1994-07-01 4.022
1994-10-01 1.988
1995-01-01 1.611
1995-04-01 3.988
1995-07-01 1.110
1995-10-01 3.712
1996-01-01 2.739
1996-04-01 4.368
1996-07-01 5.179
1996-10-01 20.785
1997-01-01 9.235
1997-04-01 9.267
1997-07-01 6.326
1997-10-01 11.597
1998-01-01 19.614
1998-04-01 12.191
1998-07-01 5.621
1998-10-01 6.849
1999-01-01 24.856
1999-04-01 31.858
1999-07-01 27.297
1999-10-01 27.666
2000-01-01 29.210
2000-04-01 25.993
2000-07-01 17.524
2000-10-01 24.018
2001-01-01 18.316
2001-04-01 25.575
2001-07-01 21.950
2001-10-01 13.272
2002-01-01 14.318
2002-04-01 33.622
2002-07-01 16.052
2002-10-01 28.404
2003-01-01 37.488
2003-04-01 46.440
2003-07-01 41.121
2003-10-01 56.291
2004-01-01 52.141
2004-04-01 45.412
2004-07-01 35.992
2004-10-01 57.468
2005-01-01 65.053
2005-04-01 55.142
2005-07-01 37.073
2005-10-01 87.876
2006-01-01 62.238
2006-04-01 68.826
2006-07-01 74.494
2006-10-01 120.317
2007-01-01 85.073
2007-04-01 113.966
2007-07-01 64.288
2007-10-01 45.989
2008-01-01 6.358
2008-04-01 167.352
2008-07-01 130.991
2008-10-01 276.977
2009-01-01 105.106
2009-04-01 64.394
2009-07-01 88.519
2009-10-01 43.260
2010-01-01 18.249
2010-04-01 -7.600
2010-07-01 40.851
2010-10-01 -11.421
2011-01-01 -4.139
2011-04-01 25.473
2011-07-01 -19.095
2011-10-01 -18.665
2012-01-01 12.249
2012-04-01 -55.367
2012-07-01 -15.618
2012-10-01 12.113
2013-01-01 -8.044
2013-04-01 -26.169
2013-07-01 -4.830
2013-10-01 2.965
2014-01-01 -32.813
2014-04-01 4.582
2014-07-01 18.545
2014-10-01 -24.957
2015-01-01 -11.961
2015-04-01 25.467