Quarterly Billions of US Dollars
1987-01-01 2.958
1987-04-01 3.013
1987-07-01 2.909
1987-10-01 3.166
1988-01-01 2.748
1988-04-01 2.597
1988-07-01 2.644
1988-10-01 2.706
1989-01-01 2.487
1989-04-01 2.332
1989-07-01 2.364
1989-10-01 2.376
1990-01-01 2.472
1990-04-01 2.260
1990-07-01 2.158
1990-10-01 2.383
1991-01-01 2.833
1991-04-01 3.841
1991-07-01 3.982
1991-10-01 4.087
1992-01-01 4.526
1992-04-01 4.880
1992-07-01 5.288
1992-10-01 4.993
1993-01-01 5.626
1993-04-01 6.146
1993-07-01 6.383
1993-10-01 6.413
1994-01-01 6.829
1994-04-01 8.009
1994-07-01 8.647
1994-10-01 8.905
1995-01-01 10.979
1995-04-01 12.908
1995-07-01 13.699
1995-10-01 15.396
1996-01-01 16.610
1996-04-01 18.376
1996-07-01 22.617
1996-10-01 26.359
1997-01-01 27.479
1997-04-01 28.829
1997-07-01 30.524
1997-10-01 29.281
1998-01-01 28.308
1998-04-01 27.706
1998-07-01 27.188
1998-10-01 27.337
1999-01-01 26.300
1999-04-01 24.860
1999-07-01 23.861
1999-10-01 24.330
2000-01-01 25.147
2000-04-01 24.096
2000-07-01 23.000
2000-10-01 21.618
2001-01-01 20.506
2001-04-01 19.146
2001-07-01 17.096
2001-10-01 16.856
2002-01-01 14.490
2002-04-01 15.040
2002-07-01 15.440
2002-10-01 15.899
2003-01-01 17.013
2003-04-01 18.643
2003-07-01 21.106
2003-10-01 22.145
2004-01-01 26.096
2004-04-01 26.715
2004-07-01 27.392
2004-10-01 29.351
2005-01-01 31.391
2005-04-01 31.578
2005-07-01 32.367
2005-10-01 34.554
2006-01-01 35.448
2006-04-01 38.971
2006-07-01 41.508
2006-10-01 42.476
2007-01-01 44.195
2007-04-01 50.496
2007-07-01 52.623
2007-10-01 55.358
2008-01-01 58.798
2008-04-01 61.842
2008-07-01 59.142
2008-10-01 53.301
2009-01-01 55.236
2009-04-01 62.656
2009-07-01 65.935
2009-10-01 63.296
2010-01-01 64.854
2010-04-01 66.089
2010-07-01 71.122
2010-10-01 70.779
2011-01-01 74.249
2011-04-01 75.512
2011-07-01 78.359
2011-10-01 82.945
2012-01-01 87.901
2012-04-01 86.806
2012-07-01 93.809
2012-10-01 89.836
2013-01-01 90.595
2013-04-01 86.582
2013-07-01 95.452
2013-10-01 99.475
2014-01-01 100.722
2014-04-01 99.768
2014-07-01 96.571
2014-10-01 98.614
2015-01-01 96.986
2015-04-01 101.468