Quarterly Millions of US Dollars
1981-10-01 0
1982-01-01 0
1982-04-01 0
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 0
1985-01-01 0
1985-04-01 0
1985-07-01 0
1985-10-01 25
1986-01-01 25
1986-04-01 25
1986-07-01 25
1994-01-01 0
1994-04-01 0
1994-07-01 0
1994-10-01 25
1995-01-01 25
1995-04-01 0
1995-07-01 0
1995-10-01 20
1996-01-01 76
1996-04-01 106
1996-07-01 98
1996-10-01 98
1997-01-01 70
1997-04-01 45
1997-07-01 50
1997-10-01 790
1998-01-01 773
1998-04-01 788
1998-07-01 789
1998-10-01 49
1999-01-01 24
1999-04-01 15
1999-07-01 0
1999-10-01 3
2000-01-01 3
2000-04-01 3
2000-07-01 3
2000-10-01 0
2001-01-01 690
2001-04-01 759
2001-07-01 759
2001-10-01 759
2002-01-01 1004
2002-04-01 936
2002-07-01 973
2002-10-01 965
2003-01-01 947
2003-04-01 947
2003-07-01 910
2003-10-01 0
2004-01-01 67
2004-04-01 67
2004-07-01 67
2004-10-01 67
2005-01-01 100
2005-04-01 100
2005-07-01 100
2005-10-01 100
2006-01-01 703
2006-04-01 805
2006-07-01 1787
2006-10-01 1787
2007-01-01 2526
2007-04-01 2424
2007-07-01 1442
2007-10-01 1592
2008-01-01 150
2008-04-01 150
2008-07-01 150
2008-10-01 50
2009-01-01 50
2009-04-01 790
2009-07-01 809
2009-10-01 750
2010-01-01 717
2010-04-01 0
2010-07-01 0
2010-10-01 0
2011-01-01 13
2011-04-01 13
2011-07-01 13
2011-10-01 257
2012-01-01 251
2012-04-01 276
2012-07-01 291
2012-10-01 72
2013-01-01 65
2013-04-01 40
2013-07-01 175
2013-10-01 1188
2014-01-01 1962
2014-04-01 2358
2014-07-01 2177
2014-10-01 1174
2015-01-01 1300
2015-04-01 2123
2015-07-01 2363
2015-10-01 2363
2016-01-01 2663
2016-04-01 1440
2016-07-01 1900
2016-10-01 1900
2017-01-01 1678
2017-04-01 2763
2017-07-01 2060
2017-10-01 2290
2018-01-01 2320
2018-04-01 1543