Quarterly Millions of US Dollars
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 0
1986-01-01 0
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 24
1992-01-01 23
1992-04-01 24
1992-07-01 25
1997-04-01 0
1997-07-01 0
1997-10-01 0
1998-01-01 0
1998-04-01 0
1998-07-01 0
1998-10-01 0
1999-01-01 0
1999-04-01 50
1999-07-01 50
1999-10-01 50
2000-01-01 50
2000-04-01 0
2000-07-01 0
2000-10-01 0
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 0
2002-10-01 0
2003-01-01 0
2003-04-01 0
2003-07-01 0
2003-10-01 0
2004-01-01 0
2004-04-01 0
2004-07-01 0
2004-10-01 0
2005-01-01 0
2005-04-01 0
2005-07-01 0
2005-10-01 0
2006-01-01 0
2006-04-01 0
2006-07-01 0
2006-10-01 0
2007-01-01 0
2007-04-01 0
2007-07-01 0
2007-10-01 65
2008-01-01 65
2008-04-01 65
2008-07-01 65
2008-10-01 100
2009-01-01 100
2009-04-01 100
2009-07-01 100
2009-10-01 0
2010-01-01 0
2010-04-01 0
2010-07-01 0
2010-10-01 0
2011-01-01 0
2011-04-01 0
2011-07-01 0
2011-10-01 500
2012-01-01 500
2012-04-01 500
2012-07-01 500
2012-10-01 0
2013-01-01 0
2013-04-01 0
2013-07-01 0
2013-10-01 0
2014-01-01 500
2014-04-01 500
2014-07-01 500
2014-10-01 500
2015-01-01 0
2015-04-01 0
2015-07-01 0
2015-10-01 0
2016-01-01 0
2016-04-01 500
2016-07-01 500
2016-10-01 500
2017-01-01 500
2017-04-01 500
2017-07-01 1250
2017-10-01 1350
2018-01-01 2350
2018-04-01 2525