Quarterly Billions of US Dollars
1966-01-01 0.080
1966-04-01 0.045
1966-07-01 0.030
1966-10-01 0.020
1967-01-01 0.039
1967-04-01 0.130
1967-07-01 0.020
1967-10-01 0.022
1968-01-01 0.299
1968-04-01 0.495
1968-07-01 0.210
1968-10-01 0.091
1969-01-01 0.227
1969-04-01 0.030
1969-07-01 0.030
1969-10-01 0.158
1970-01-01 0.073
1970-04-01 0.015
1970-07-01 0.275
1970-10-01 0.035
1971-01-01 0.988
1971-04-01 0.508
1971-07-01 0.283
1971-10-01 0.847
1972-01-01 2.955
1972-04-01 2.491
1972-07-01 2.378
1972-10-01 2.950
1973-01-01 2.553
1973-04-01 2.302
1973-07-01 1.552
1973-10-01 2.440
1974-01-01 1.611
1974-04-01 2.163
1974-07-01 1.806
1974-10-01 3.336
1975-01-01 4.578
1975-04-01 5.589
1975-07-01 4.176
1975-10-01 7.271
1976-01-01 9.506
1976-04-01 7.506
1976-07-01 7.716
1976-10-01 9.083
1977-01-01 7.876
1977-04-01 8.658
1977-07-01 8.603
1977-10-01 8.562
1978-01-01 9.664
1978-04-01 9.236
1978-07-01 8.917
1978-10-01 7.038
1979-01-01 9.069
1979-04-01 8.865
1979-07-01 8.023
1979-10-01 6.378
1980-01-01 5.015
1980-04-01 9.856
1980-07-01 6.077
1980-10-01 7.273
1981-01-01 6.555
1981-04-01 8.396
1981-07-01 8.913
1981-10-01 14.377
1982-01-01 16.562
1982-04-01 13.351
1982-07-01 15.192
1982-10-01 13.755
1983-01-01 15.917
1983-04-01 14.012
1983-07-01 8.437
1983-10-01 17.582
1984-01-01 20.517
1984-04-01 14.077
1984-07-01 19.977
1984-10-01 29.035
1985-01-01 24.151
1985-04-01 24.050
1985-07-01 25.385
1985-10-01 17.621
1986-01-01 31.034
1986-04-01 39.651
1986-07-01 37.858
1986-10-01 28.070
1987-01-01 31.939
1987-04-01 29.008
1987-07-01 22.938
1987-10-01 11.027
1988-01-01 22.832
1988-04-01 32.771
1988-07-01 38.542
1988-10-01 25.615
1989-01-01 47.109
1989-04-01 44.183
1989-07-01 32.967
1989-10-01 38.080
1990-01-01 69.652
1990-04-01 21.745
1990-07-01 40.990
1990-10-01 53.826
1991-01-01 51.608
1991-04-01 48.011
1991-07-01 40.265
1991-10-01 44.767
1992-01-01 37.558
1992-04-01 36.442
1992-07-01 19.694
1992-10-01 55.623
1993-01-01 42.691
1993-04-01 57.430
1993-07-01 50.915
1993-10-01 67.590
1994-01-01 71.162
1994-04-01 74.879
1994-07-01 72.146
1994-10-01 61.621
1995-01-01 52.859
1995-04-01 51.671
1995-07-01 70.348
1995-10-01 58.459
1996-01-01 95.662
1996-04-01 99.803
1996-07-01 107.673
1996-10-01 135.577
1997-01-01 132.838
1997-04-01 130.506
1997-07-01 133.483
1997-10-01 45.827
1998-01-01 144.391
1998-04-01 179.755
1998-07-01 95.865
1998-10-01 40.154
1999-01-01 178.278
1999-04-01 245.531
1999-07-01 201.028
1999-10-01 124.076
2000-01-01 182.983
2000-04-01 196.957
2000-07-01 235.147
2000-10-01 218.898
2001-01-01 357.601
2001-04-01 317.578
2001-07-01 196.909
2001-10-01 279.600
2002-01-01 241.755
2002-04-01 259.388
2002-07-01 102.153
2002-10-01 142.606
2003-01-01 224.132
2003-04-01 278.048
2003-07-01 268.413
2003-10-01 316.746
2004-01-01 339.995
2004-04-01 260.450
2004-07-01 267.174
2004-10-01 325.908
2005-01-01 342.357
2005-04-01 358.379
2005-07-01 180.195
2005-10-01 483.128
2006-01-01 449.226
2006-04-01 451.870
2006-07-01 456.846
2006-10-01 732.715
2007-01-01 641.031
2007-04-01 853.467
2007-07-01 280.701
2007-10-01 310.597
2008-01-01 179.356
2008-04-01 741.198
2008-07-01 213.589
2008-10-01 451.639
2009-01-01 367.006
2009-04-01 580.596
2009-07-01 298.663
2009-10-01 279.539
2010-01-01 303.496
2010-04-01 16.372
2010-07-01 240.316
2010-10-01 95.514
2011-01-01 213.529
2011-04-01 147.044
2011-07-01 6.215
2011-10-01 66.962
2012-01-01 356.605
2012-04-01 -39.242
2012-07-01 148.585
2012-10-01 245.962
2013-01-01 13.125
2013-04-01 105.573
2013-07-01 111.675
2013-10-01 265.695
2014-01-01 57.606
2014-04-01 249.657
2014-07-01 198.292
2014-10-01 76.992
2015-01-01 175.534
2015-04-01 243.979