Quarter Millions of US Dollars 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 0 1997-01-01 0 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 0 1999-07-01 0 1999-10-01 0 2000-01-01 0 2000-04-01 77 2000-07-01 77 2000-10-01 77 2001-01-01 77 2001-04-01 77 2001-07-01 77 2001-10-01 77 2002-01-01 77 2010-04-01 600 2010-07-01 600 2010-10-01 0 2011-01-01 0 2011-04-01 0 2011-07-01 0 2011-10-01 0 2012-01-01 0 2012-04-01 724 2012-07-01 732 2012-10-01 739 2013-01-01 740 2013-04-01 0 2013-07-01 0 2013-10-01 0 2014-01-01 0 2014-04-01 0 2014-07-01 0 2014-10-01 0 2015-01-01 0 2015-04-01 0 2015-07-01 0 2015-10-01 0 2016-01-01 0 2016-04-01 1000 2016-07-01 1000 2016-10-01 1000 2017-01-01 1000