Quarterly Billions of US Dollars
1987-01-01 6.194
1987-04-01 6.801
1987-07-01 7.244
1987-10-01 7.744
1988-01-01 8.099
1988-04-01 8.140
1988-07-01 8.422
1988-10-01 9.302
1989-01-01 9.615
1989-04-01 9.285
1989-07-01 9.842
1989-10-01 10.437
1990-01-01 10.461
1990-04-01 10.891
1990-07-01 12.082
1990-10-01 12.206
1991-01-01 11.475
1991-04-01 11.250
1991-07-01 11.873
1991-10-01 11.912
1992-01-01 11.680
1992-04-01 11.382
1992-07-01 12.076
1992-10-01 10.903
1993-01-01 10.645
1993-04-01 11.254
1993-07-01 19.825
1993-10-01 20.550
1994-01-01 21.494
1994-04-01 22.433
1994-07-01 23.466
1994-10-01 23.928
1995-01-01 25.157
1995-04-01 24.987
1995-07-01 25.267
1995-10-01 25.437
1996-01-01 24.167
1996-04-01 22.971
1996-07-01 24.139
1996-10-01 24.475
1997-01-01 24.214
1997-04-01 24.065
1997-07-01 23.437
1997-10-01 21.619
1998-01-01 21.374
1998-04-01 21.797
1998-07-01 21.724
1998-10-01 22.698
1999-01-01 21.247
1999-04-01 22.481
1999-07-01 25.919
1999-10-01 26.749
2000-01-01 28.003
2000-04-01 29.821
2000-07-01 30.355
2000-10-01 27.965
2001-01-01 29.158
2001-04-01 32.542
2001-07-01 34.430
2001-10-01 33.943
2002-01-01 36.529
2002-04-01 37.790
2002-07-01 39.735
2002-10-01 42.618
2003-01-01 44.602
2003-04-01 47.750
2003-07-01 53.733
2003-10-01 58.229
2004-01-01 66.973
2004-04-01 68.965
2004-07-01 76.788
2004-10-01 83.889
2005-01-01 87.933
2005-04-01 92.049
2005-07-01 93.976
2005-10-01 97.475
2006-01-01 105.729
2006-04-01 113.938
2006-07-01 122.846
2006-10-01 137.588
2007-01-01 158.957
2007-04-01 176.771
2007-07-01 184.155
2007-10-01 184.520
2008-01-01 189.683
2008-04-01 186.707
2008-07-01 178.328
2008-10-01 171.268
2009-01-01 168.133
2009-04-01 178.099
2009-07-01 184.691
2009-10-01 188.707
2010-01-01 185.912
2010-04-01 180.571
2010-07-01 192.942
2010-10-01 196.708
2011-01-01 202.509
2011-04-01 209.052
2011-07-01 203.043
2011-10-01 206.057
2012-01-01 211.550
2012-04-01 207.465
2012-07-01 222.318
2012-10-01 222.921
2013-01-01 217.376
2013-04-01 219.998
2013-07-01 222.231
2013-10-01 223.928
2014-01-01 225.667
2014-04-01 227.408
2014-07-01 221.641
2014-10-01 215.199
2015-01-01 205.683
2015-04-01 213.731