Quarterly Billions of US Dollars
1987-01-01 8.790
1987-04-01 8.919
1987-07-01 9.067
1987-10-01 9.634
1988-01-01 9.667
1988-04-01 10.123
1988-07-01 11.017
1988-10-01 12.228
1989-01-01 12.858
1989-04-01 13.071
1989-07-01 13.060
1989-10-01 13.657
1990-01-01 13.561
1990-04-01 13.604
1990-07-01 13.382
1990-10-01 13.206
1991-01-01 12.455
1991-04-01 12.164
1991-07-01 12.348
1991-10-01 12.677
1992-01-01 11.173
1992-04-01 10.453
1992-07-01 10.967
1992-10-01 10.555
1993-01-01 9.747
1993-04-01 9.619
1993-07-01 9.537
1993-10-01 9.107
1994-01-01 8.690
1994-04-01 8.507
1994-07-01 9.144
1994-10-01 8.979
1995-01-01 9.632
1995-04-01 10.203
1995-07-01 9.846
1995-10-01 9.124
1996-01-01 9.711
1996-04-01 10.378
1996-07-01 11.323
1996-10-01 13.021
1997-01-01 13.549
1997-04-01 14.202
1997-07-01 14.427
1997-10-01 14.507
1998-01-01 15.650
1998-04-01 16.999
1998-07-01 17.160
1998-10-01 17.360
1999-01-01 19.294
1999-04-01 20.831
1999-07-01 21.668
1999-10-01 20.784
2000-01-01 20.404
2000-04-01 19.865
2000-07-01 18.175
2000-10-01 18.695
2001-01-01 18.142
2001-04-01 17.205
2001-07-01 18.150
2001-10-01 18.349
2002-01-01 19.118
2002-04-01 17.780
2002-07-01 18.088
2002-10-01 17.410
2003-01-01 18.638
2003-04-01 19.675
2003-07-01 19.913
2003-10-01 20.310
2004-01-01 19.384
2004-04-01 21.845
2004-07-01 23.174
2004-10-01 23.356
2005-01-01 22.322
2005-04-01 21.754
2005-07-01 21.769
2005-10-01 23.127
2006-01-01 25.648
2006-04-01 25.799
2006-07-01 27.775
2006-10-01 29.397
2007-01-01 32.535
2007-04-01 36.838
2007-07-01 38.622
2007-10-01 44.978
2008-01-01 52.846
2008-04-01 69.683
2008-07-01 75.178
2008-10-01 67.847
2009-01-01 63.203
2009-04-01 56.281
2009-07-01 57.022
2009-10-01 53.271
2010-01-01 53.806
2010-04-01 61.759
2010-07-01 70.410
2010-10-01 77.618
2011-01-01 90.239
2011-04-01 89.491
2011-07-01 99.475
2011-10-01 112.970
2012-01-01 129.744
2012-04-01 129.697
2012-07-01 137.662
2012-10-01 144.947
2013-01-01 142.029
2013-04-01 150.820
2013-07-01 175.086
2013-10-01 191.261
2014-01-01 198.544
2014-04-01 212.851
2014-07-01 229.910
2014-10-01 229.887
2015-01-01 237.343
2015-04-01 248.142