 |
       |
| Date | Month |
|---|---|
| 1978–1979 | Oct–Dec, Jan–Mar |
| 1979–1980 | Oct–Dec, Jan?, Mar? |
| 1980–1981 | Sep–Nov, Feb–Mar |
| 1981–1982 | Oct–Dec |
| 1982–1983 | Sep, Oct?, Dec, Jan, Mar, Apr? |
| 1983–1984 | Sep, Nov (2 issues), Jan, Feb, Apr |
| 1984–1985 | Sep, Oct, Jan |
| 1985–1986 | Sep, Oct, Nov, Dec, Jan, Mar, Apr |
| 1986–1987 | Sep, Oct, Jan, Feb, Apr |
| 1987–1988 | Oct, Nov, Dec, Feb, Apr |
| 1988–1989 | Oct, Jan, Mar, Apr |
| 1989–1990 | Oct, Dec, Mar |
| 1990–1991 | Jan, Oct, Nov, Jan |
| 1991–1992 | Dec, Feb, Apr |
| 1992–1993 | |
| 1993–1994 | |
| 1994–1995 | Dec, Apr, Mar |
