Quarterly Billions of US Dollars
1987-01-01 1.585
1987-04-01 1.574
1987-07-01 1.697
1987-10-01 1.958
1988-01-01 2.048
1988-04-01 2.103
1988-07-01 2.184
1988-10-01 2.394
1989-01-01 2.294
1989-04-01 2.130
1989-07-01 2.194
1989-10-01 2.149
1990-01-01 1.994
1990-04-01 2.041
1990-07-01 2.192
1990-10-01 2.243
1991-01-01 2.141
1991-04-01 2.177
1991-07-01 2.255
1991-10-01 2.402
1992-01-01 2.122
1992-04-01 2.357
1992-07-01 2.544
1992-10-01 2.840
1993-01-01 2.731
1993-04-01 3.259
1993-07-01 4.464
1993-10-01 4.610
1994-01-01 4.823
1994-04-01 5.080
1994-07-01 5.380
1994-10-01 5.883
1995-01-01 5.946
1995-04-01 6.142
1995-07-01 6.263
1995-10-01 5.730
1996-01-01 4.813
1996-04-01 4.695
1996-07-01 5.367
1996-10-01 5.705
1997-01-01 5.613
1997-04-01 7.283
1997-07-01 7.559
1997-10-01 7.151
1998-01-01 7.555
1998-04-01 7.514
1998-07-01 7.389
1998-10-01 7.421
1999-01-01 7.272
1999-04-01 7.168
1999-07-01 7.656
1999-10-01 7.311
2000-01-01 7.144
2000-04-01 7.163
2000-07-01 6.587
2000-10-01 6.760
2001-01-01 6.496
2001-04-01 7.106
2001-07-01 6.453
2001-10-01 6.152
2002-01-01 6.772
2002-04-01 7.341
2002-07-01 6.991
2002-10-01 6.981
2003-01-01 6.383
2003-04-01 6.470
2003-07-01 6.531
2003-10-01 7.575
2004-01-01 7.480
2004-04-01 7.368
2004-07-01 7.629
2004-10-01 8.319
2005-01-01 8.673
2005-04-01 8.760
2005-07-01 9.202
2005-10-01 9.454
2006-01-01 9.755
2006-04-01 10.926
2006-07-01 11.352
2006-10-01 12.467
2007-01-01 12.747
2007-04-01 15.873
2007-07-01 16.864
2007-10-01 17.776
2008-01-01 17.493
2008-04-01 19.556
2008-07-01 19.867
2008-10-01 19.609
2009-01-01 20.012
2009-04-01 20.718
2009-07-01 21.331
2009-10-01 22.840
2010-01-01 24.130
2010-04-01 26.796
2010-07-01 35.217
2010-10-01 41.302
2011-01-01 50.256
2011-04-01 62.692
2011-07-01 64.333
2011-10-01 65.938
2012-01-01 68.974
2012-04-01 78.375
2012-07-01 81.846
2012-10-01 92.682
2013-01-01 103.148
2013-04-01 121.965
2013-07-01 128.183
2013-10-01 148.592
2014-01-01 160.356
2014-04-01 190.127
2014-07-01 201.219
2014-10-01 227.820
2015-01-01 243.719
2015-04-01 276.719