Quarterly Billions of US Dollars
1987-01-01 0.106
1987-04-01 0.105
1987-07-01 0.104
1987-10-01 0.116
1988-01-01 0.112
1988-04-01 0.105
1988-07-01 0.103
1988-10-01 0.107
1989-01-01 0.102
1989-04-01 0.100
1989-07-01 0.134
1989-10-01 0.143
1990-01-01 0.144
1990-04-01 0.147
1990-07-01 0.156
1990-10-01 0.160
1991-01-01 0.144
1991-04-01 0.138
1991-07-01 0.722
1991-10-01 0.732
1992-01-01 0.722
1992-04-01 0.731
1992-07-01 0.742
1992-10-01 0.758
1993-01-01 1.056
1993-04-01 1.053
1993-07-01 1.096
1993-10-01 1.062
1994-01-01 1.338
1994-04-01 1.401
1994-07-01 1.445
1994-10-01 1.436
1995-01-01 1.500
1995-04-01 1.608
1995-07-01 2.348
1995-10-01 2.557
1996-01-01 2.785
1996-04-01 3.240
1996-07-01 3.510
1996-10-01 3.614
1997-01-01 4.506
1997-04-01 4.716
1997-07-01 5.284
1997-10-01 5.243
1998-01-01 5.589
1998-04-01 7.641
1998-07-01 7.062
1998-10-01 7.591
1999-01-01 7.937
1999-04-01 7.806
1999-07-01 7.931
1999-10-01 8.367
2000-01-01 7.424
2000-04-01 7.303
2000-07-01 7.595
2000-10-01 7.051
2001-01-01 8.456
2001-04-01 8.413
2001-07-01 8.806
2001-10-01 9.806
2002-01-01 9.393
2002-04-01 9.896
2002-07-01 9.335
2002-10-01 9.459
2003-01-01 10.883
2003-04-01 13.116
2003-07-01 15.006
2003-10-01 20.755
2004-01-01 21.352
2004-04-01 21.322
2004-07-01 21.681
2004-10-01 22.392
2005-01-01 22.360
2005-04-01 21.013
2005-07-01 21.389
2005-10-01 21.556
2006-01-01 21.683
2006-04-01 21.769
2006-07-01 21.657
2006-10-01 23.118
2007-01-01 23.955
2007-04-01 25.543
2007-07-01 25.236
2007-10-01 28.349
2008-01-01 26.050
2008-04-01 27.022
2008-07-01 26.372
2008-10-01 26.346
2009-01-01 25.561
2009-04-01 24.732
2009-07-01 24.986
2009-10-01 24.865
2010-01-01 24.771
2010-04-01 23.367
2010-07-01 28.513
2010-10-01 29.355
2011-01-01 31.432
2011-04-01 34.948
2011-07-01 35.297
2011-10-01 34.136
2012-01-01 33.848
2012-04-01 42.689
2012-07-01 45.726
2012-10-01 48.361
2013-01-01 48.280
2013-04-01 57.769
2013-07-01 57.149
2013-10-01 65.401
2014-01-01 67.254
2014-04-01 79.375
2014-07-01 85.938
2014-10-01 95.134
2015-01-01 104.178
2015-04-01 127.737