Quarterly Millions of US Dollars
1986-04-01 0
1986-07-01 0
1986-10-01 0
1987-01-01 0
1987-04-01 0
1987-07-01 0
1987-10-01 0
1988-01-01 0
1988-04-01 0
1988-07-01 0
1988-10-01 0
1989-01-01 0
1989-04-01 0
1989-07-01 0
1989-10-01 0
1990-01-01 0
1990-04-01 0
1990-07-01 0
1990-10-01 0
1991-01-01 0
1991-04-01 0
1991-07-01 0
1991-10-01 0
1992-01-01 0
1992-04-01 0
1992-07-01 0
1992-10-01 0
1993-01-01 0
1993-04-01 0
1993-07-01 0
1993-10-01 0
1994-01-01 0
1994-04-01 0
1994-07-01 0
1994-10-01 0
1995-01-01 0
1995-04-01 250
1995-07-01 250
1995-10-01 250
1996-01-01 250
1998-07-01 0
1998-10-01 0
1999-01-01 0
1999-04-01 0
1999-07-01 0
1999-10-01 0
2000-01-01 0
2000-04-01 0
2000-07-01 0
2000-10-01 372
2001-01-01 0
2001-04-01 0
2001-07-01 0
2001-10-01 0
2002-01-01 0
2002-04-01 0
2002-07-01 76
2002-10-01 80
2003-01-01 84
2003-04-01 659
2003-07-01 583
2003-10-01 631
2004-01-01 611
2004-04-01 0
2004-07-01 0
2004-10-01 1498
2005-01-01 1426
2005-04-01 2080
2005-07-01 2075
2005-10-01 850
2006-01-01 850
2006-04-01 100
2006-07-01 100
2006-10-01 0
2007-01-01 0
2007-04-01 0
2007-07-01 0
2007-10-01 0
2008-01-01 791
2008-04-01 1262
2008-07-01 2104
2008-10-01 2137
2009-01-01 1358
2009-04-01 903
2009-07-01 1799
2009-10-01 1765
2010-01-01 1669
2010-04-01 2793
2010-07-01 1365
2010-10-01 2672
2011-01-01 2841
2011-04-01 1445
2011-07-01 1936
2011-10-01 1875
2012-01-01 3829
2012-04-01 3869
2012-07-01 3390
2012-10-01 2064
2013-01-01 1438
2013-04-01 2071
2013-07-01 4634
2013-10-01 4734
2014-01-01 4860
2014-04-01 4004
2014-07-01 1500
2014-10-01 1500
2015-01-01 740
2015-04-01 1001
2015-07-01 2084
2015-10-01 2031
2016-01-01 1347
2016-04-01 1782
2016-07-01 1764
2016-10-01 1883
2017-01-01 3167
2017-04-01 4326
2017-07-01 3243
2017-10-01 3049
2018-01-01 4080
2018-04-01 3371