Quarterly Billions of US Dollars
1987-01-01 5.469
1987-04-01 6.675
1987-07-01 5.163
1987-10-01 0.980
1988-01-01 6.190
1988-04-01 9.137
1988-07-01 6.760
1988-10-01 9.339
1989-01-01 8.081
1989-04-01 6.619
1989-07-01 6.335
1989-10-01 9.820
1990-01-01 5.799
1990-04-01 6.359
1990-07-01 11.952
1990-10-01 8.397
1991-01-01 6.250
1991-04-01 9.433
1991-07-01 8.944
1991-10-01 6.778
1992-01-01 7.269
1992-04-01 3.517
1992-07-01 4.980
1992-10-01 2.763
1993-01-01 6.658
1993-04-01 10.287
1993-07-01 37.559
1993-10-01 16.854
1994-01-01 20.037
1994-04-01 17.309
1994-07-01 15.315
1994-10-01 10.078
1995-01-01 13.410
1995-04-01 17.737
1995-07-01 33.386
1995-10-01 24.793
1996-01-01 40.020
1996-04-01 43.375
1996-07-01 35.075
1996-10-01 59.694
1997-01-01 51.118
1997-04-01 49.178
1997-07-01 54.022
1997-10-01 43.340
1998-01-01 57.980
1998-04-01 83.680
1998-07-01 50.433
1998-10-01 34.093
1999-01-01 95.012
1999-04-01 119.265
1999-07-01 115.633
1999-10-01 57.869
2000-01-01 81.683
2000-04-01 95.532
2000-07-01 117.917
2000-10-01 149.768
2001-01-01 178.604
2001-04-01 155.850
2001-07-01 106.629
2001-10-01 173.095
2002-01-01 135.433
2002-04-01 145.966
2002-07-01 91.672
2002-10-01 98.228
2003-01-01 99.864
2003-04-01 102.331
2003-07-01 135.728
2003-10-01 163.686
2004-01-01 114.400
2004-04-01 131.178
2004-07-01 107.340
2004-10-01 137.693
2005-01-01 96.657
2005-04-01 155.843
2005-07-01 71.914
2005-10-01 229.536
2006-01-01 168.555
2006-04-01 278.928
2006-07-01 266.378
2006-10-01 415.315
2007-01-01 331.854
2007-04-01 438.784
2007-07-01 88.064
2007-10-01 125.033
2008-01-01 49.466
2008-04-01 267.725
2008-07-01 119.479
2008-10-01 322.172
2009-01-01 265.296
2009-04-01 181.885
2009-07-01 140.273
2009-10-01 114.481
2010-01-01 15.189
2010-04-01 -31.386
2010-07-01 52.683
2010-10-01 26.148
2011-01-01 -33.589
2011-04-01 -16.055
2011-07-01 14.793
2011-10-01 118.277
2012-01-01 116.915
2012-04-01 -63.587
2012-07-01 41.324
2012-10-01 112.783
2013-01-01 28.676
2013-04-01 56.908
2013-07-01 4.887
2013-10-01 16.565
2014-01-01 -7.049
2014-04-01 104.922
2014-07-01 48.536
2014-10-01 11.073
2015-01-01 97.666
2015-04-01 132.145