1983
May 1 1980
January 1 1980
March 1 1986
May 30 1975
September 1 1990
August 1 1986
October 1 1991
November 25 1980
January 1 1977
June 1 1987
September 14 1981
May 1 1984
July 25 1985
September 1 1985
May 1 1985
September 1 1982
1980
April 24 1986
1988
March 1 1974
1987
January 1 1990
January 1 1989
January 1 1976
July 1 1976
April 1 1976
January 1 1987
May 1 1976
July 1 1981
September 1 1986
June 12 1986
January 1 1988