001 1981 April-July
002 1981 July-October
003 1981 October-January, 1982
004 1982 January-April
005 1982 April-June
006 1982 July-September
007 1982 October-December
008 1983 January-March
009 1983 April-June
010 1983 July-September
011 1983 October-December
012 1984 January-March
013 1984 April-June
014 1984 July-September
015 1984 October-December
016 1985 January-March
017 1985 April-June
018 1985 July-Sept
019 1985 October-December OP
020 1986 January-MarchOP
021 1986 April-June OP
022-1986-Jul
023 1986 October-December OP
024 1987 Jan-March OP
025 1987 April-June OP
026 1987 July-Sept OP
027 1987 Oct-Dec OP
028 1988 Jan-March OP
029 1988 April-June OP
030 1988 July-Sept OP
031 1988 Dec-jw
032 1989 jan-mar
033 1989 apr-jun
034 1989 jul-aug
035 1989 Aug-Sep-jw
036 1989 oct-dec
