Date Span
Aug 1991-Feb 1992
1
Dec 1983-Oct 1984
1
Dec 1991-Mar 1992
1
Feb 1988-Oct 1989
1
Feb 1988-Sep 1989
1
Feb-Dec 1984
1
Jan 1984-Nov 1989
1
Jan 1989-Mar 1992
1
Jan-Apr 1984
1
Jan-Dec 1985
1
Jan-Dec 1986
1
Jan-Dec 1987
1
Jun 1989-Aug 1991
1
Mar 1981-Jan 1991
1
May-Sep 1983
1
Nov 1979-Jan 1984
1
Sep 1980-Feb 1987
1
[1988-1989]
1