Quarterly Billions of US Dollars
1971-10-01 0.031
1972-01-01 0.113
1972-04-01 0.153
1972-07-01 0.173
1972-10-01 0.208
1973-01-01 0.277
1973-04-01 0.289
1973-07-01 0.340
1973-10-01 0.395
1974-01-01 0.401
1974-04-01 0.398
1974-07-01 0.392
1974-10-01 0.449
1975-01-01 0.585
1975-04-01 0.661
1975-07-01 0.668
1975-10-01 0.732
1976-01-01 0.800
1976-04-01 0.943
1976-07-01 1.048
1976-10-01 1.137
1977-01-01 1.254
1977-04-01 1.578
1977-07-01 2.083
1977-10-01 2.684
1978-01-01 3.242
1978-04-01 3.369
1978-07-01 3.717
1978-10-01 3.832
1979-01-01 3.812
1979-04-01 3.827
1979-07-01 4.115
1979-10-01 4.100
1980-01-01 3.806
1980-04-01 4.256
1980-07-01 4.237
1980-10-01 4.182
1981-01-01 4.110
1981-04-01 4.453
1981-07-01 4.899
1981-10-01 5.803
1982-01-01 6.266
1982-04-01 6.302
1982-07-01 6.324
1982-10-01 6.379
1983-01-01 6.109
1983-04-01 5.971
1983-07-01 5.866
1983-10-01 5.669
1984-01-01 5.673
1984-04-01 5.488
1984-07-01 5.239
1984-10-01 5.162
1985-01-01 5.112
1985-04-01 5.095
1985-07-01 5.126
1985-10-01 4.889
1986-01-01 4.974
1986-04-01 4.907
1986-07-01 4.877
1986-10-01 4.525
1987-01-01 4.364
1987-04-01 4.158
1987-07-01 4.128
1987-10-01 4.019
1988-01-01 3.734
1988-04-01 3.293
1988-07-01 2.701
1988-10-01 2.362
1989-01-01 2.160
1989-04-01 2.078
1989-07-01 2.017
1989-10-01 2.068
1990-01-01 37.419
1990-04-01 38.024
1990-07-01 39.166
1990-10-01 39.578
1991-01-01 39.201
1991-04-01 39.978
1991-07-01 40.887
1991-10-01 42.452
1992-01-01 42.081
1992-04-01 42.639
1992-07-01 43.564
1992-10-01 45.426
1993-01-01 46.341
1993-04-01 48.750
1993-07-01 48.377
1993-10-01 49.582
1994-01-01 53.638
1994-04-01 54.990
1994-07-01 56.037
1994-10-01 56.075
1995-01-01 55.643
1995-04-01 56.113
1995-07-01 57.972
1995-10-01 59.002
1996-01-01 61.494
1996-04-01 60.560
1996-07-01 68.658
1996-10-01 69.128
1997-01-01 70.896
1997-04-01 76.284
1997-07-01 72.364
1997-10-01 71.899
1998-01-01 73.238
1998-04-01 73.011
1998-07-01 74.314
1998-10-01 74.439
1999-01-01 73.498
1999-04-01 77.401
1999-07-01 78.505
1999-10-01 79.226
2000-01-01 81.557
2000-04-01 81.139
2000-07-01 81.231
2000-10-01 78.950
2001-01-01 83.170
2001-04-01 78.591
2001-07-01 80.864
2001-10-01 74.575
2002-01-01 74.315
2002-04-01 70.831
2002-07-01 70.402
2002-10-01 71.987
2003-01-01 64.096
2003-04-01 61.493
2003-07-01 57.929
2003-10-01 59.781
2004-01-01 60.729
2004-04-01 59.745
2004-07-01 60.066
2004-10-01 61.025
2005-01-01 63.287
2005-04-01 63.277
2005-07-01 63.348
2005-10-01 63.863
2006-01-01 64.738
2006-04-01 63.981
2006-07-01 62.698
2006-10-01 63.947
2007-01-01 63.589
2007-04-01 64.297
2007-07-01 65.285
2007-10-01 67.360
2008-01-01 67.078
2008-04-01 66.526
2008-07-01 64.830
2008-10-01 62.248
2009-01-01 60.463
2009-04-01 64.067
2009-07-01 68.315
2009-10-01 76.570
2010-01-01 80.718
2010-04-01 87.394
2010-07-01 92.323
2010-10-01 92.773
2011-01-01 98.129
2011-04-01 104.021
2011-07-01 108.429
2011-10-01 112.280
2012-01-01 120.237
2012-04-01 121.753
2012-07-01 132.244
2012-10-01 138.433
2013-01-01 141.782
2013-04-01 146.898
2013-07-01 158.247
2013-10-01 173.017
2014-01-01 180.264
2014-04-01 191.114
2014-07-01 191.568
2014-10-01 195.195
2015-01-01 199.799
2015-04-01 209.294