The Listener Crossword

Listener Crossword: Statistics

Solver Numbers

The columns 0–10 list the numbers of solvers with that number of submissions missing or in error in the year. The “Total” column gives the total of those; the “Solvers” column gives the number of different solvers who made at least one submission in the year (when known).

Year	Solvers	0	1	2	3	4	5	6	7	8	9	10	Total
1976–77	930	1	0	5	2	5	4	5	–	–	–	–	22
1977–78	–	3	4	3	2	6	8	6	6	5	9	–	52
1978–80	–	0	0	1	0	5	4	5	7	11	7	8	48
1980–81	974	6	5	5	5	17	5	8	12	12	–	–	75
1981–82	919	1	0	5	5	3	7	11	3	6	8	14	63
1982–83	853	1	5	5	5	7	8	9	7	8	12	7	74
1983–84	1002	3	4	7	13	15	13	8	8	–	–	–	71
1984–85	1029	1	3	1	6	6	6	10	8	7	9	8	65
1985–86	908	1	1	1	3	3	2	6	5	5	7	6	40
1986–87	818	0	8	4	5	7	3	1	6	3	12	4	53
1987–88	854	1	5	5	7	6	5	6	10	4	5	9	63
1988–89	881	4	5	4	4	7	6	3	9	8	8	6	64
1989–90	746	0	2	5	4	7	7	4	7	11	9	4	60
1990¹	–	17	16	21	23	–	–	–	–	–	–	–	77
1991²	–	7	0	0	4	7	9	9	7	12	–	–	55
1992	2651	6	5	8	5	9	11	9	13	8	11	11	96
1993	2302	3	10	8	6	9	13	10	5	13	7	6	90
1994	3375	0	9	6	10	8	9	11	13	17	7	8	98
1995	2538	4	6	10	12	10	13	11	10	8	10	12	106
1996	2200	3	7	10	9	8	6	13	8	8	9	6	87
1997	2200	9	8	16	7	10	8	7	5	9	15	10	104
1998	2807	12	9	11	15	13	16	15	10	9	9	16	135
1999	1958	5	9	10	9	15	10	11	13	11	10	11	114
2000	1616	5	11	9	12	13	8	6	6	9	18	11	108
2001	2560	2	8	11	15	16	16	10	15	6	18	22	139
2002	2186	15	21	23	19	20	14	11	15	19	19	14	190
2003	1896	9	14	19	11	12	19	9	13	12	16	13	147
2004	2882	7	6	11	23	20	19	21	16	17	14	18	172
2005	2642	10	19	21	26	15	19	20	17	21	19	13	200
2006	1919	14	18	10	22	27	17	9	17	25	11	14	184
2007	1696	21	14	20	14	11	10	14	17	12	19	12	164

¹ This covered only the last 14 puzzles that appeared in The Listener.
² This year — in which there were no puzzles for the first few weeks — was blighted by the failure of many entries to reach the statistician; only the cases of potentially all-correct solvers were followed up.

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