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 0.168
1972-07-01 0.209
1972-10-01 0.370
1973-01-01 0.191
1973-04-01 0.362
1973-07-01 0.147
1973-10-01 0.515
1974-01-01 0.180
1974-04-01 0.528
1974-07-01 0.032
1974-10-01 0.166
1975-01-01 0.337
1975-04-01 0.572
1975-07-01 0.187
1975-10-01 0.190
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 0.942
1978-10-01 1.284
1979-01-01 1.105
1979-04-01 0.796
1979-07-01 0.842
1979-10-01 0.329
1980-01-01 0.193
1980-04-01 0.839
1980-07-01 0.605
1980-10-01 0.446
1981-01-01 0.415
1981-04-01 1.027
1981-07-01 0.752
1981-10-01 0.974
1982-01-01 1.315
1982-04-01 0.773
1982-07-01 0.370
1982-10-01 0.620
1983-01-01 0.316
1983-04-01 0.611
1983-07-01 1.423
1983-10-01 0.408
1984-01-01 0.792
1984-04-01 0.652
1984-07-01 0.680
1984-10-01 1.649
1985-01-01 2.087
1985-04-01 1.964
1985-07-01 1.888
1985-10-01 1.748
1986-01-01 2.097
1986-04-01 1.013
1986-07-01 0.490
1986-10-01 0.397
1987-01-01 1.105
1987-04-01 0.519
1987-07-01 1.063
1987-10-01 0.503
1988-01-01 1.801
1988-04-01 1.231
1988-07-01 1.784
1988-10-01 1.619
1989-01-01 2.009
1989-04-01 0.736
1989-07-01 2.975
1989-10-01 1.168
1990-01-01 37.109
1990-04-01 2.811
1990-07-01 2.109
1990-10-01 17.932
1991-01-01 4.714
1991-04-01 3.545
1991-07-01 3.662
1991-10-01 3.343
1992-01-01 6.743
1992-04-01 21.639
1992-07-01 4.297
1992-10-01 9.038
1993-01-01 7.651
1993-04-01 8.821
1993-07-01 9.729
1993-10-01 27.188
1994-01-01 13.978
1994-04-01 50.549
1994-07-01 15.124
1994-10-01 15.018
1995-01-01 9.637
1995-04-01 10.515
1995-07-01 15.631
1995-10-01 12.015
1996-01-01 19.190
1996-04-01 33.116
1996-07-01 35.168
1996-10-01 27.747
1997-01-01 31.949
1997-04-01 42.345
1997-07-01 38.724
1997-10-01 14.866
1998-01-01 23.016
1998-04-01 28.716
1998-07-01 15.986
1998-10-01 13.300
1999-01-01 17.970
1999-04-01 24.799
1999-07-01 13.235
1999-10-01 24.092
2000-01-01 56.771
2000-04-01 17.088
2000-07-01 28.069
2000-10-01 7.181
2001-01-01 25.930
2001-04-01 52.984
2001-07-01 13.100
2001-10-01 21.863
2002-01-01 26.475
2002-04-01 26.941
2002-07-01 15.905
2002-10-01 30.055
2003-01-01 31.893
2003-04-01 39.718
2003-07-01 32.777
2003-10-01 31.979
2004-01-01 44.294
2004-04-01 36.068
2004-07-01 34.054
2004-10-01 34.132
2005-01-01 64.789
2005-04-01 45.861
2005-07-01 47.967
2005-10-01 49.471
2006-01-01 53.886
2006-04-01 31.413
2006-07-01 42.150
2006-10-01 78.195
2007-01-01 79.129
2007-04-01 80.653
2007-07-01 36.025
2007-10-01 45.891
2008-01-01 25.547
2008-04-01 69.314
2008-07-01 29.513
2008-10-01 8.390
2009-01-01 33.018
2009-04-01 61.859
2009-07-01 69.702
2009-10-01 85.967
2010-01-01 72.167
2010-04-01 66.099
2010-07-01 106.368
2010-10-01 91.335
2011-01-01 101.813
2011-04-01 108.591
2011-07-01 51.597
2011-10-01 80.293
2012-01-01 144.274
2012-04-01 93.483
2012-07-01 123.686
2012-10-01 141.822
2013-01-01 128.083
2013-04-01 135.059
2013-07-01 112.400
2013-10-01 129.355
2014-01-01 120.816
2014-04-01 185.340
2014-07-01 122.422
2014-10-01 134.912
2015-01-01 124.020
2015-04-01 137.011