Dec 31, 1981

Dec 31, 1981

Jan 01, 1982

Jun 01, 1982

Sep 01, 1982

Oct 01, 1982

Dec 31, 1982

Dec 31, 1982

Dec 31, 1982

Dec 31, 1982

Dec 31, 1982

Nov 01, 1983

Dec 31, 1983

Dec 31, 1983

Dec 31, 1983

Dec 31, 1983

Dec 31, 1983

Dec 31, 1983

Dec 31, 1983

Dec 31, 1983

Feb 01, 1984

Aug 23, 1984

Sep 01, 1984

Nov 01, 1984

Dec 31, 1984

Dec 31, 1984

Dec 31, 1985

Dec 31, 1985

Dec 31, 1985

Dec 31, 1985

Dec 31, 1985

Dec 31, 1985

Dec 31, 1985

Dec 31, 1986

Dec 31, 1986

Oct 01, 1987