1981-01-01 1984-01-20 2006-02-08 1984-11-30 1991-01-01 1992-05-15 1983-11-12 1981-01-01 1983-01-01 1982-01-01 1980-01-31 1981-07-01 1992-01-01 1983-01-01 1985-01-01 2010-02-01 1990-01-01 2008-07-24 1981-08-02 1982-07-07 1987-01-01 2005-03-10 1988-01-01 1982-10-21 1988-01-01 1982-02-01 1984-01-01 1987-08-07 2011-11-14 1988-06-25 2011-04-07 1992-01-02 1994-01-01 2009-11-05 1988-01-01