1971-01-23 1972-01-22 1972-06-24 2002-02-15 2008-05-04 2016-12-14 1983-11-25 2008-03-03 2013-07-15 2001-02-20 1998-01-01 1968-12-08 1973-06-23 1974-06-08 1974-02-16 1971-06-19 1971-04-03 1971-03-06 1993-11-27 2001-11-12 2015-10-01 1989-01-16 2011-05-09 2013-03-04 1993-01-30 1992-06-01 2017-08-01