Quarterly Billions of US Dollars
1987-01-01 0.069
1987-04-01 0.068
1987-07-01 0.068
1987-10-01 0.081
1988-01-01 0.080
1988-04-01 0.076
1988-07-01 0.074
1988-10-01 0.079
1989-01-01 0.076
1989-04-01 0.069
1989-07-01 0.072
1989-10-01 0.070
1990-01-01 0.064
1990-04-01 0.065
1990-07-01 0.073
1990-10-01 0.074
1991-01-01 0.071
1992-01-01 0.110
1992-04-01 0.160
1992-07-01 0.160
1992-10-01 0.160
1993-01-01 0.160
1993-04-01 0.154
1993-07-01 0.135
1993-10-01 0.376
1994-01-01 0.587
1994-04-01 0.575
1994-07-01 0.584
1994-10-01 0.621
1995-01-01 0.593
1995-04-01 0.581
1995-07-01 0.720
1995-10-01 0.865
1996-01-01 0.970
1996-04-01 1.429
1996-07-01 1.805
1996-10-01 1.812
1997-01-01 1.676
1997-04-01 2.236
1997-07-01 2.512
1997-10-01 2.534
1998-01-01 2.700
1998-04-01 3.092
1998-07-01 4.354
1998-10-01 4.006
1999-01-01 3.472
1999-04-01 3.447
1999-07-01 3.536
1999-10-01 3.912
2000-01-01 4.374
2000-04-01 4.454
2000-07-01 3.825
2000-10-01 3.763
2001-01-01 3.345
2001-04-01 4.282
2001-07-01 5.631
2001-10-01 7.130
2002-01-01 8.472
2002-04-01 9.608
2002-07-01 11.896
2002-10-01 12.021
2003-01-01 12.335
2003-04-01 13.958
2003-07-01 17.328
2003-10-01 19.068
2004-01-01 19.451
2004-04-01 19.509
2004-07-01 20.952
2004-10-01 21.648
2005-01-01 21.559
2005-04-01 20.512
2005-07-01 21.770
2005-10-01 21.755
2006-01-01 22.914
2006-04-01 23.553
2006-07-01 22.792
2006-10-01 27.888
2007-01-01 28.587
2007-04-01 30.654
2007-07-01 29.047
2007-10-01 31.696
2008-01-01 34.791
2008-04-01 38.764
2008-07-01 38.772
2008-10-01 37.768
2009-01-01 36.939
2009-04-01 36.313
2009-07-01 40.587
2009-10-01 48.680
2010-01-01 49.837
2010-04-01 52.434
2010-07-01 58.229
2010-10-01 59.546
2011-01-01 67.848
2011-04-01 70.825
2011-07-01 70.425
2011-10-01 73.642
2012-01-01 87.356
2012-04-01 89.929
2012-07-01 89.976
2012-10-01 94.777
2013-01-01 96.327
2013-04-01 111.011
2013-07-01 111.955
2013-10-01 111.891
2014-01-01 126.714
2014-04-01 135.266
2014-07-01 134.061
2014-10-01 130.846
2015-01-01 127.226
2015-04-01 128.092