Quarterly Millions of US Dollars
1975-07-01 0
1975-10-01 0
1976-01-01 0
1976-04-01 0
1976-07-01 0
1976-10-01 0
1977-01-01 0
1977-04-01 0
1977-07-01 0
1977-10-01 0
1978-01-01 0
1978-04-01 0
1978-07-01 0
1978-10-01 0
1979-01-01 0
1979-04-01 0
1979-07-01 0
1979-10-01 0
1980-01-01 0
1980-04-01 0
1980-07-01 0
1980-10-01 0
1981-01-01 0
1981-04-01 0
1981-07-01 25
1981-10-01 25
1982-01-01 25
1982-04-01 25
1982-07-01 0
1982-10-01 0
1983-01-01 0
1983-04-01 0
1983-07-01 0
1983-10-01 0
1984-01-01 0
1984-04-01 0
1984-07-01 0
1984-10-01 1
1985-01-01 1
1985-04-01 1
1985-07-01 26
1985-10-01 48
1986-01-01 49
1986-04-01 51
1986-07-01 29
1993-04-01 111
1993-07-01 111
1993-10-01 111
1994-01-01 0
1994-04-01 0
1994-07-01 0
1994-10-01 0
1995-01-01 0
1995-04-01 0
1995-07-01 0
1995-10-01 0
1996-01-01 0
1996-04-01 0
1996-07-01 0
1996-10-01 100
1997-01-01 100
1997-04-01 250
1997-07-01 250
1997-10-01 150
1998-01-01 150
1998-04-01 0
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
2000-04-01 180
2000-07-01 180
2000-10-01 180
2001-01-01 180
2001-04-01 465
2001-07-01 9
2001-10-01 19
2002-01-01 91
2002-04-01 267
2002-07-01 298
2002-10-01 588
2003-01-01 523
2003-04-01 347
2003-07-01 1439
2003-10-01 568
2004-01-01 336
2004-04-01 584
2004-07-01 527
2004-10-01 527
2005-01-01 1102
2005-04-01 1002
2005-07-01 1207
2005-10-01 1507
2006-01-01 866
2006-04-01 716
2006-07-01 326
2006-10-01 276
2007-01-01 268
2007-04-01 388
2007-07-01 789
2007-10-01 539
2008-01-01 540
2008-04-01 1160
2008-07-01 899
2008-10-01 899
2009-01-01 899
2009-04-01 159
2009-07-01 320
2009-10-01 320
2010-01-01 378
2010-04-01 576
2010-07-01 678
2010-10-01 698
2011-01-01 931
2011-04-01 731
2011-07-01 340
2011-10-01 1153
2012-01-01 1361
2012-04-01 1805
2012-07-01 1297
2012-10-01 955
2013-01-01 1855
2013-04-01 1405
2013-07-01 1400
2013-10-01 1517
2014-01-01 617
2014-04-01 1017
2014-07-01 1117
2014-10-01 793
2015-01-01 789
2015-04-01 587
2015-07-01 500
2015-10-01 550
2016-01-01 550
2016-04-01 353
2016-07-01 516
2016-10-01 1761
2017-01-01 1762
2017-04-01 2145
2017-07-01 2691
2017-10-01 1317
2018-01-01 1922
2018-04-01 1710