Quarterly Billions of US Dollars
1971-01-01 0.058
1971-04-01 0.087
1971-07-01 0.114
1971-10-01 0.166
1972-01-01 0.291
1972-04-01 0.370
1972-07-01 0.484
1972-10-01 0.675
1973-01-01 0.747
1973-04-01 1.121
1973-07-01 1.178
1973-10-01 1.516
1974-01-01 1.663
1974-04-01 2.082
1974-07-01 2.130
1974-10-01 2.262
1975-01-01 2.383
1975-04-01 2.710
1975-07-01 2.755
1975-10-01 2.845
1976-01-01 2.969
1976-04-01 3.174
1976-07-01 3.324
1976-10-01 3.586
1977-01-01 3.789
1977-04-01 4.008
1977-07-01 4.213
1977-10-01 4.572
1978-01-01 5.034
1978-04-01 5.485
1978-07-01 6.036
1978-10-01 6.590
1979-01-01 6.750
1979-04-01 7.035
1979-07-01 7.402
1979-10-01 7.367
1980-01-01 7.049
1980-04-01 7.283
1980-07-01 7.372
1980-10-01 7.147
1981-01-01 7.005
1981-04-01 6.717
1981-07-01 6.845
1981-10-01 6.905
1982-01-01 6.733
1982-04-01 6.775
1982-07-01 6.659
1982-10-01 6.896
1983-01-01 6.963
1983-04-01 6.997
1983-07-01 6.986
1983-10-01 6.944
1984-01-01 6.998
1984-04-01 7.070
1984-07-01 7.047
1984-10-01 7.285
1985-01-01 7.414
1985-04-01 8.208
1985-07-01 8.589
1985-10-01 7.661
1986-01-01 7.622
1986-04-01 7.680
1986-07-01 7.929
1986-10-01 7.755
1987-01-01 7.824
1987-04-01 7.547
1987-07-01 7.171
1987-10-01 7.227
1988-01-01 6.863
1988-04-01 6.300
1988-07-01 6.099
1988-10-01 6.322
1989-01-01 5.869
1989-04-01 5.319
1989-07-01 5.575
1989-10-01 5.716
1990-01-01 5.531
1990-04-01 4.838
1990-07-01 4.619
1990-10-01 4.391
1991-01-01 3.814
1991-04-01 4.565
1991-07-01 4.548
1991-10-01 4.852
1992-01-01 7.174
1992-04-01 7.919
1992-07-01 8.209
1992-10-01 7.589
1993-01-01 7.922
1993-04-01 6.189
1993-07-01 7.609
1993-10-01 8.194
1994-01-01 8.946
1994-04-01 8.657
1994-07-01 8.963
1994-10-01 9.646
1995-01-01 10.308
1995-04-01 10.519
1995-07-01 10.838
1995-10-01 11.297
1996-01-01 11.765
1996-04-01 11.839
1996-07-01 12.442
1996-10-01 14.968
1997-01-01 14.667
1997-04-01 16.154
1997-07-01 17.194
1997-10-01 17.920
1998-01-01 19.627
1998-04-01 20.066
1998-07-01 20.786
1998-10-01 21.399
1999-01-01 22.276
1999-04-01 24.925
1999-07-01 25.898
1999-10-01 26.365
2000-01-01 27.988
2000-04-01 29.717
2000-07-01 30.479
2000-10-01 30.326
2001-01-01 30.432
2001-04-01 32.646
2001-07-01 35.550
2001-10-01 35.515
2002-01-01 36.195
2002-04-01 39.997
2002-07-01 39.928
2002-10-01 41.448
2003-01-01 42.970
2003-04-01 45.633
2003-07-01 50.782
2003-10-01 52.042
2004-01-01 57.919
2004-04-01 59.623
2004-07-01 60.594
2004-10-01 64.602
2005-01-01 65.399
2005-04-01 66.805
2005-07-01 72.561
2005-10-01 77.105
2006-01-01 87.152
2006-04-01 94.428
2006-07-01 97.346
2006-10-01 114.887
2007-01-01 122.987
2007-04-01 133.018
2007-07-01 144.183
2007-10-01 154.650
2008-01-01 154.574
2008-04-01 164.158
2008-07-01 163.950
2008-10-01 160.273
2009-01-01 156.361
2009-04-01 174.595
2009-07-01 187.346
2009-10-01 197.507
2010-01-01 199.000
2010-04-01 200.312
2010-07-01 213.547
2010-10-01 226.448
2011-01-01 239.968
2011-04-01 240.553
2011-07-01 234.523
2011-10-01 250.956
2012-01-01 259.685
2012-04-01 255.810
2012-07-01 265.747
2012-10-01 284.467
2013-01-01 292.501
2013-04-01 297.816
2013-07-01 306.606
2013-10-01 319.785
2014-01-01 323.564
2014-04-01 336.892
2014-07-01 338.237
2014-10-01 341.356
2015-01-01 349.653
2015-04-01 362.725