| 1990 | Puzzles | Summary | Errors | Solvers | — | Setters |
| 1989–90 | Puzzles | Summary | Errors | — | Dinner | |
| 1988–89 | Puzzles | Summary | Errors | Solvers | Dinner | Addresses |
| 1987–88 | Puzzles | Summary | Errors | Solvers | Dinner | |
| 1986–87 | Puzzles | Summary | Errors | — | — | |
| 1985–86 | Puzzles | Summary | Errors | Solvers | — | |
| 1984–85 | Puzzles | Summary | Errors | Solvers | — | |
| 1983–84 | Puzzles | Summary | Errors | Solvers | Dinner | |
| 1982–83 | Puzzles | Summary | Errors | Solvers | — | |
| 1981–82 | Puzzles | Summary | Errors | Solvers | — | |
| 1980–81 | Puzzles | Summary | Errors | Solvers | — | |
| 1979–80 | Puzzles | Summary | Errors | — | Dinner | |
| 1978–79 | Puzzles | Summary | Errors | Solvers | Dinner | Dinner (2500) |
| 1977–78 | Puzzles | Summary | — | Solvers | Dinner | |
| 1976–77 | Puzzles | Summary | — | Solvers | Dinner |