Dec 31, 1999

Dec 31, 1999

Dec 31, 1999

Oct 08, 1999

Dec 31, 1998

Oct 12, 1998

Jul 31, 1996

Jul 21, 1995

Apr 14, 1993

Dec 31, 1991

Dec 31, 1991

Dec 31, 1991

Dec 31, 1991

Dec 31, 1990

May 31, 1990

Dec 31, 1989

Nov 16, 1987

TBD

TBD

TBD

TBD