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 0.341
1972-04-01 0.420
1972-07-01 0.534
1972-10-01 0.755
1973-01-01 0.857
1973-04-01 1.231
1973-07-01 1.288
1973-10-01 1.639
1974-01-01 1.786
1974-04-01 2.205
1974-07-01 2.253
1974-10-01 2.385
1975-01-01 2.506
1975-04-01 2.833
1975-07-01 2.878
1975-10-01 2.968
1976-01-01 3.092
1976-04-01 3.287
1976-07-01 3.407
1976-10-01 3.669
1977-01-01 3.872
1977-04-01 4.090
1977-07-01 4.266
1977-10-01 4.625
1978-01-01 5.086
1978-04-01 5.537
1978-07-01 6.051
1978-10-01 6.533
1979-01-01 6.633
1979-04-01 6.828
1979-07-01 7.172
1979-10-01 7.137
1980-01-01 6.821
1980-04-01 7.052
1980-07-01 7.101
1980-10-01 6.838
1981-01-01 6.691
1981-04-01 6.390
1981-07-01 6.438
1981-10-01 6.497
1982-01-01 6.326
1982-04-01 6.295
1982-07-01 6.180
1982-10-01 6.416
1983-01-01 6.484
1983-04-01 6.444
1983-07-01 6.372
1983-10-01 6.286
1984-01-01 6.399
1984-04-01 6.473
1984-07-01 6.441
1984-10-01 6.681
1985-01-01 6.777
1985-04-01 7.511
1985-07-01 7.883
1985-10-01 6.999
1986-01-01 6.964
1986-04-01 7.047
1986-07-01 7.351
1986-10-01 7.235
1987-01-01 7.261
1987-04-01 7.001
1987-07-01 6.684
1987-10-01 6.731
1988-01-01 6.358
1988-04-01 5.876
1988-07-01 5.750
1988-10-01 5.970
1989-01-01 5.519
1989-04-01 5.112
1989-07-01 5.196
1989-10-01 5.319
1990-01-01 5.134
1990-04-01 4.441
1990-07-01 4.297
1990-10-01 4.037
1991-01-01 3.526
1991-04-01 4.279
1991-07-01 4.258
1991-10-01 4.567
1992-01-01 6.887
1992-04-01 7.634
1992-07-01 7.927
1992-10-01 7.310
1993-01-01 7.642
1993-04-01 5.685
1993-07-01 7.063
1993-10-01 7.649
1994-01-01 8.418
1994-04-01 8.118
1994-07-01 8.072
1994-10-01 8.714
1995-01-01 9.373
1995-04-01 9.589
1995-07-01 9.656
1995-10-01 9.994
1996-01-01 10.066
1996-04-01 10.137
1996-07-01 10.462
1996-10-01 12.712
1997-01-01 12.447
1997-04-01 13.264
1997-07-01 14.243
1997-10-01 14.516
1998-01-01 16.193
1998-04-01 16.360
1998-07-01 16.873
1998-10-01 17.453
1999-01-01 17.926
1999-04-01 20.473
1999-07-01 21.067
1999-10-01 21.207
2000-01-01 22.263
2000-04-01 24.078
2000-07-01 24.617
2000-10-01 24.495
2001-01-01 24.575
2001-04-01 25.416
2001-07-01 27.640
2001-10-01 27.023
2002-01-01 27.629
2002-04-01 30.137
2002-07-01 30.666
2002-10-01 30.823
2003-01-01 31.447
2003-04-01 33.993
2003-07-01 34.923
2003-10-01 35.881
2004-01-01 38.109
2004-04-01 40.486
2004-07-01 40.280
2004-10-01 43.757
2005-01-01 44.246
2005-04-01 46.666
2005-07-01 50.802
2005-10-01 53.488
2006-01-01 63.357
2006-04-01 69.611
2006-07-01 71.456
2006-10-01 85.038
2007-01-01 88.906
2007-04-01 98.035
2007-07-01 104.794
2007-10-01 112.694
2008-01-01 113.331
2008-04-01 121.077
2008-07-01 119.276
2008-10-01 117.491
2009-01-01 115.644
2009-04-01 126.059
2009-07-01 136.403
2009-10-01 138.474
2010-01-01 140.322
2010-04-01 140.760
2010-07-01 148.268
2010-10-01 153.467
2011-01-01 160.406
2011-04-01 159.737
2011-07-01 156.040
2011-10-01 167.908
2012-01-01 171.924
2012-04-01 168.543
2012-07-01 176.072
2012-10-01 189.099
2013-01-01 192.266
2013-04-01 194.191
2013-07-01 200.581
2013-10-01 205.877
2014-01-01 210.459
2014-04-01 221.361
2014-07-01 224.111
2014-10-01 232.903
2015-01-01 235.420
2015-04-01 249.045