Quarterly Billions of US Dollars
1987-01-01 2.858
1987-04-01 2.913
1987-07-01 2.809
1987-10-01 3.066
1988-01-01 2.648
1988-04-01 2.547
1988-07-01 2.594
1988-10-01 2.656
1989-01-01 2.437
1989-04-01 2.282
1989-07-01 2.314
1989-10-01 2.326
1990-01-01 2.422
1990-04-01 2.210
1990-07-01 2.108
1990-10-01 2.333
1991-01-01 2.783
1991-04-01 3.791
1991-07-01 3.932
1991-10-01 4.037
1992-01-01 4.476
1992-04-01 4.830
1992-07-01 5.288
1992-10-01 4.993
1993-01-01 5.626
1993-04-01 6.146
1993-07-01 6.435
1993-10-01 6.470
1994-01-01 6.889
1994-04-01 8.068
1994-07-01 8.714
1994-10-01 8.937
1995-01-01 11.072
1995-04-01 12.903
1995-07-01 13.626
1995-10-01 14.889
1996-01-01 15.973
1996-04-01 17.805
1996-07-01 21.908
1996-10-01 25.433
1997-01-01 26.909
1997-04-01 28.376
1997-07-01 29.940
1997-10-01 28.688
1998-01-01 27.725
1998-04-01 27.134
1998-07-01 26.764
1998-10-01 27.055
1999-01-01 25.796
1999-04-01 24.445
1999-07-01 23.669
1999-10-01 24.300
2000-01-01 25.099
2000-04-01 24.598
2000-07-01 23.405
2000-10-01 21.794
2001-01-01 20.452
2001-04-01 19.158
2001-07-01 17.166
2001-10-01 16.733
2002-01-01 14.232
2002-04-01 14.733
2002-07-01 14.840
2002-10-01 15.310
2003-01-01 16.012
2003-04-01 17.789
2003-07-01 20.681
2003-10-01 21.545
2004-01-01 25.367
2004-04-01 25.946
2004-07-01 26.718
2004-10-01 28.715
2005-01-01 30.782
2005-04-01 31.028
2005-07-01 31.662
2005-10-01 33.908
2006-01-01 34.915
2006-04-01 38.640
2006-07-01 41.082
2006-10-01 42.189
2007-01-01 43.721
2007-04-01 50.199
2007-07-01 52.532
2007-10-01 55.261
2008-01-01 59.072
2008-04-01 62.094
2008-07-01 58.934
2008-10-01 52.866
2009-01-01 54.632
2009-04-01 62.299
2009-07-01 66.015
2009-10-01 63.417
2010-01-01 65.376
2010-04-01 66.256
2010-07-01 71.381
2010-10-01 70.954
2011-01-01 74.632
2011-04-01 75.910
2011-07-01 78.630
2011-10-01 82.964
2012-01-01 88.205
2012-04-01 87.093
2012-07-01 94.460
2012-10-01 90.143
2013-01-01 91.129
2013-04-01 87.427
2013-07-01 97.034
2013-10-01 101.586
2014-01-01 103.126
2014-04-01 102.524
2014-07-01 100.601
2014-10-01 103.021
2015-01-01 100.162
2015-04-01 103.749