Quarterly Billions of US Dollars
1971-01-01 0.011
1971-04-01 0.011
1971-07-01 0.012
1971-10-01 0.012
1972-01-01 0.012
1972-04-01 0.038
1972-07-01 0.038
1972-10-01 0.039
1973-01-01 0.070
1973-04-01 0.166
1973-07-01 0.166
1973-10-01 0.160
1974-01-01 0.171
1974-04-01 0.171
1974-07-01 0.169
1974-10-01 0.182
1975-01-01 0.183
1975-04-01 0.183
1975-07-01 0.210
1975-10-01 0.235
1976-01-01 0.239
1976-04-01 0.235
1976-07-01 0.311
1976-10-01 0.426
1977-01-01 0.440
1977-04-01 0.437
1977-07-01 0.511
1977-10-01 0.568
1978-01-01 0.586
1978-04-01 0.585
1978-07-01 0.654
1978-10-01 0.647
1979-01-01 0.662
1979-04-01 0.667
1979-07-01 1.668
1979-10-01 2.191
1980-01-01 1.975
1980-04-01 2.169
1980-07-01 2.116
1980-10-01 2.060
1981-01-01 2.019
1981-04-01 1.841
1981-07-01 1.860
1981-10-01 1.958
1982-01-01 1.891
1982-04-01 1.886
1982-07-01 1.877
1982-10-01 1.990
1983-01-01 2.134
1983-04-01 2.224
1983-07-01 2.239
1983-10-01 2.537
1984-01-01 2.727
1984-04-01 2.684
1984-07-01 3.010
1984-10-01 3.419
1985-01-01 3.863
1985-04-01 4.181
1985-07-01 5.003
1985-10-01 5.308
1986-01-01 6.579
1986-04-01 7.449
1986-07-01 8.410
1986-10-01 8.996
1987-01-01 9.398
1987-04-01 9.414
1987-07-01 9.680
1987-10-01 10.238
1988-01-01 10.140
1988-04-01 9.992
1988-07-01 10.320
1988-10-01 11.235
1989-01-01 10.927
1989-04-01 10.846
1989-07-01 11.385
1989-10-01 11.765
1990-01-01 12.131
1990-04-01 13.525
1990-07-01 13.701
1990-10-01 14.336
1991-01-01 14.561
1991-04-01 14.678
1991-07-01 15.222
1991-10-01 16.327
1992-01-01 15.682
1992-04-01 16.242
1992-07-01 16.570
1992-10-01 15.946
1993-01-01 16.120
1993-04-01 16.506
1993-07-01 16.321
1993-10-01 16.268
1994-01-01 17.058
1994-04-01 17.829
1994-07-01 18.585
1994-10-01 19.847
1995-01-01 22.078
1995-04-01 23.015
1995-07-01 23.051
1995-10-01 22.999
1996-01-01 20.777
1996-04-01 19.290
1996-07-01 19.493
1996-10-01 18.709
1997-01-01 17.782
1997-04-01 18.107
1997-07-01 19.341
1997-10-01 19.711
1998-01-01 18.785
1998-04-01 17.479
1998-07-01 17.836
1998-10-01 17.722
1999-01-01 16.884
1999-04-01 16.179
1999-07-01 16.275
1999-10-01 14.497
2000-01-01 14.309
2000-04-01 13.915
2000-07-01 13.519
2000-10-01 14.333
2001-01-01 17.773
2001-04-01 21.638
2001-07-01 24.050
2001-10-01 23.418
2002-01-01 26.660
2002-04-01 29.303
2002-07-01 29.091
2002-10-01 31.427
2003-01-01 32.978
2003-04-01 35.368
2003-07-01 36.241
2003-10-01 39.988
2004-01-01 39.475
2004-04-01 40.880
2004-07-01 43.150
2004-10-01 47.029
2005-01-01 44.542
2005-04-01 43.329
2005-07-01 41.788
2005-10-01 41.636
2006-01-01 47.740
2006-04-01 51.137
2006-07-01 46.637
2006-10-01 53.538
2007-01-01 58.146
2007-04-01 74.122
2007-07-01 76.901
2007-10-01 83.545
2008-01-01 87.650
2008-04-01 104.399
2008-07-01 93.212
2008-10-01 113.289
2009-01-01 117.957
2009-04-01 144.556
2009-07-01 150.444
2009-10-01 154.627
2010-01-01 152.915
2010-04-01 144.143
2010-07-01 167.256
2010-10-01 161.282
2011-01-01 171.683
2011-04-01 173.789
2011-07-01 156.045
2011-10-01 149.389
2012-01-01 145.801
2012-04-01 141.213
2012-07-01 147.348
2012-10-01 150.136
2013-01-01 146.778
2013-04-01 152.410
2013-07-01 165.772
2013-10-01 172.147
2014-01-01 168.206
2014-04-01 165.450
2014-07-01 153.647
2014-10-01 150.308
2015-01-01 137.100
2015-04-01 144.978