Quarterly Billions of US Dollars
1987-01-01 0.963
1987-04-01 0.986
1987-07-01 0.976
1987-10-01 1.110
1988-01-01 1.062
1988-04-01 0.971
1988-07-01 0.942
1988-10-01 0.931
1989-01-01 0.833
1989-04-01 0.816
1989-07-01 0.805
1989-10-01 0.858
1990-01-01 0.864
1990-04-01 1.125
1990-07-01 1.228
1990-10-01 1.265
1991-01-01 1.134
1991-04-01 1.137
1991-07-01 1.271
1991-10-01 1.499
1992-01-01 1.601
1992-04-01 1.587
1992-07-01 1.663
1992-10-01 1.496
1993-01-01 1.740
1993-04-01 2.018
1993-07-01 2.094
1993-10-01 2.186
1994-01-01 2.238
1994-04-01 2.392
1994-07-01 2.829
1994-10-01 3.691
1995-01-01 4.737
1995-04-01 5.971
1995-07-01 7.265
1995-10-01 9.747
1996-01-01 10.325
1996-04-01 11.480
1996-07-01 12.484
1996-10-01 12.940
1997-01-01 12.164
1997-04-01 13.314
1997-07-01 13.749
1997-10-01 13.555
1998-01-01 14.723
1998-04-01 14.470
1998-07-01 15.705
1998-10-01 16.910
1999-01-01 18.420
1999-04-01 19.156
1999-07-01 24.672
1999-10-01 19.928
2000-01-01 30.105
2000-04-01 34.560
2000-07-01 36.450
2000-10-01 39.000
2001-01-01 37.846
2001-04-01 37.046
2001-07-01 43.067
2001-10-01 52.944
2002-01-01 60.412
2002-04-01 69.597
2002-07-01 78.593
2002-10-01 81.923
2003-01-01 97.911
2003-04-01 106.063
2003-07-01 126.194
2003-10-01 138.836
2004-01-01 148.920
2004-04-01 162.453
2004-07-01 181.430
2004-10-01 200.842
2005-01-01 216.817
2005-04-01 221.433
2005-07-01 226.479
2005-10-01 233.794
2006-01-01 257.681
2006-04-01 279.058
2006-07-01 282.483
2006-10-01 304.103
2007-01-01 323.517
2007-04-01 358.089
2007-07-01 378.156
2007-10-01 393.380
2008-01-01 448.193
2008-04-01 452.237
2008-07-01 418.363
2008-10-01 432.989
2009-01-01 438.716
2009-04-01 472.221
2009-07-01 478.471
2009-10-01 472.137
2010-01-01 458.166
2010-04-01 432.025
2010-07-01 452.423
2010-10-01 455.975
2011-01-01 468.027
2011-04-01 486.916
2011-07-01 499.236
2011-10-01 509.656
2012-01-01 522.704
2012-04-01 498.657
2012-07-01 490.102
2012-10-01 499.498
2013-01-01 482.154
2013-04-01 474.880
2013-07-01 488.787
2013-10-01 492.406
2014-01-01 476.017
2014-04-01 484.410
2014-07-01 464.876
2014-10-01 449.926
2015-01-01 430.338
2015-04-01 437.003