Quarterly Billions of US Dollars
1977-04-01 0.050
1977-07-01 0.050
1977-10-01 0.050
1978-01-01 0.050
1978-04-01 0.050
1978-07-01 0.050
1978-10-01 0.050
1979-01-01 0.050
1979-04-01 0.050
1979-07-01 0.050
1979-10-01 0.050
1980-01-01 0.050
1980-04-01 0.080
1980-07-01 0.080
1980-10-01 0.080
1981-01-01 0.080
1981-04-01 0.080
1981-07-01 0.080
1981-10-01 0.080
1982-01-01 0.080
1982-04-01 0.030
1982-07-01 0.049
1982-10-01 0.076
1983-01-01 0.096
1983-04-01 0.095
1983-07-01 0.096
1983-10-01 0.126
1984-01-01 0.250
1984-04-01 0.368
1984-07-01 0.403
1984-10-01 0.438
1985-01-01 0.477
1985-04-01 0.540
1985-07-01 0.731
1985-10-01 0.824
1986-01-01 0.965
1986-04-01 1.194
1986-07-01 1.396
1986-10-01 1.418
1987-01-01 1.626
1987-04-01 1.783
1987-07-01 2.131
1987-10-01 2.468
1988-01-01 2.869
1988-04-01 3.318
1988-07-01 3.245
1988-10-01 4.089
1989-01-01 3.922
1989-04-01 3.766
1989-07-01 3.925
1989-10-01 3.920
1990-01-01 3.850
1990-04-01 3.925
1990-07-01 4.165
1990-10-01 3.499
1991-01-01 2.500
1991-04-01 2.331
1991-07-01 2.444
1991-10-01 2.863
1992-01-01 2.658
1992-04-01 2.755
1992-07-01 2.677
1992-10-01 2.364
1993-01-01 2.975
1993-04-01 2.746
1993-07-01 3.731
1993-10-01 4.526
1994-01-01 5.434
1994-04-01 5.498
1994-07-01 7.155
1994-10-01 7.563
1995-01-01 9.111
1995-04-01 10.502
1995-07-01 9.893
1995-10-01 10.332
1996-01-01 10.961
1996-04-01 11.899
1996-07-01 11.683
1996-10-01 11.403
1997-01-01 10.965
1997-04-01 11.713
1997-07-01 11.889
1997-10-01 12.499
1998-01-01 12.866
1998-04-01 13.489
1998-07-01 14.320
1998-10-01 14.576
1999-01-01 12.038
1999-04-01 11.962
1999-07-01 12.055
1999-10-01 13.115
2000-01-01 12.439
2000-04-01 13.427
2000-07-01 13.196
2000-10-01 13.877
2001-01-01 15.413
2001-04-01 15.860
2001-07-01 16.995
2001-10-01 16.762
2002-01-01 19.431
2002-04-01 24.385
2002-07-01 24.443
2002-10-01 25.614
2003-01-01 29.078
2003-04-01 30.553
2003-07-01 30.961
2003-10-01 35.922
2004-01-01 33.288
2004-04-01 35.804
2004-07-01 35.862
2004-10-01 39.559
2005-01-01 38.469
2005-04-01 36.069
2005-07-01 35.721
2005-10-01 41.970
2006-01-01 46.670
2006-04-01 49.274
2006-07-01 52.047
2006-10-01 59.283
2007-01-01 60.376
2007-04-01 72.913
2007-07-01 74.673
2007-10-01 79.144
2008-01-01 90.822
2008-04-01 101.538
2008-07-01 94.504
2008-10-01 95.326
2009-01-01 103.339
2009-04-01 120.937
2009-07-01 133.629
2009-10-01 138.054
2010-01-01 132.181
2010-04-01 119.540
2010-07-01 133.419
2010-10-01 133.630
2011-01-01 142.899
2011-04-01 135.915
2011-07-01 125.090
2011-10-01 121.225
2012-01-01 119.546
2012-04-01 107.914
2012-07-01 104.207
2012-10-01 107.298
2013-01-01 102.339
2013-04-01 97.915
2013-07-01 100.136
2013-10-01 102.243
2014-01-01 100.154
2014-04-01 90.410
2014-07-01 86.904
2014-10-01 75.329
2015-01-01 65.787
2015-04-01 68.977