Quarterly Billions of US Dollars
1987-01-01 8.544
1987-04-01 8.608
1987-07-01 8.658
1987-10-01 9.681
1988-01-01 9.851
1988-04-01 9.706
1988-07-01 9.891
1988-10-01 10.510
1989-01-01 10.682
1989-04-01 10.317
1989-07-01 10.987
1989-10-01 11.845
1990-01-01 11.841
1990-04-01 12.862
1990-07-01 14.175
1990-10-01 14.033
1991-01-01 13.865
1991-04-01 13.491
1991-07-01 14.592
1991-10-01 15.275
1992-01-01 14.947
1992-04-01 16.018
1992-07-01 17.711
1992-10-01 15.780
1993-01-01 15.314
1993-04-01 15.400
1993-07-01 15.407
1993-10-01 15.227
1994-01-01 15.477
1994-04-01 15.273
1994-07-01 15.836
1994-10-01 16.303
1995-01-01 18.528
1995-04-01 18.790
1995-07-01 18.712
1995-10-01 19.079
1996-01-01 19.372
1996-04-01 19.843
1996-07-01 20.346
1996-10-01 20.107
1997-01-01 20.028
1997-04-01 20.669
1997-07-01 21.535
1997-10-01 21.048
1998-01-01 22.349
1998-04-01 23.243
1998-07-01 24.525
1998-10-01 25.571
1999-01-01 25.008
1999-04-01 26.339
1999-07-01 28.580
1999-10-01 29.630
2000-01-01 30.907
2000-04-01 34.223
2000-07-01 37.002
2000-10-01 38.799
2001-01-01 40.512
2001-04-01 40.797
2001-07-01 43.373
2001-10-01 44.291
2002-01-01 47.754
2002-04-01 56.354
2002-07-01 55.543
2002-10-01 58.562
2003-01-01 61.222
2003-04-01 65.334
2003-07-01 69.240
2003-10-01 73.994
2004-01-01 79.656
2004-04-01 80.441
2004-07-01 83.207
2004-10-01 90.237
2005-01-01 95.446
2005-04-01 93.320
2005-07-01 94.602
2005-10-01 98.038
2006-01-01 104.660
2006-04-01 114.346
2006-07-01 115.511
2006-10-01 128.686
2007-01-01 146.876
2007-04-01 150.656
2007-07-01 156.467
2007-10-01 168.353
2008-01-01 185.467
2008-04-01 181.594
2008-07-01 171.635
2008-10-01 170.636
2009-01-01 163.943
2009-04-01 174.791
2009-07-01 180.893
2009-10-01 172.756
2010-01-01 162.111
2010-04-01 148.193
2010-07-01 164.701
2010-10-01 159.797
2011-01-01 167.208
2011-04-01 163.695
2011-07-01 158.838
2011-10-01 147.780
2012-01-01 145.058
2012-04-01 132.846
2012-07-01 135.248
2012-10-01 138.084
2013-01-01 128.341
2013-04-01 130.793
2013-07-01 126.572
2013-10-01 130.908
2014-01-01 121.675
2014-04-01 117.534
2014-07-01 106.805
2014-10-01 103.475
2015-01-01 95.035
2015-04-01 94.244