| Year | Number of sets | Total items | Total graded |
|---|---|---|---|
| Totals | 449 | 1,591 | 2,374 |
| 1910 | 1 | 2 | 2 |
| 1935 | 1 | 3 | 3 |
| 1940 | 1 | 1 | 1 |
| 1948 | 1 | 1 | 1 |
| 1950 | 1 | 3 | 4 |
| 1952 | 4 | 24 | 33 |
| 1954 | 1 | 2 | 2 |
| 1955 | 2 | 28 | 29 |
| 1956 | 4 | 18 | 19 |
| 1957 | 1 | 3 | 3 |
| 1958 | 2 | 45 | 49 |
| 1959 | 3 | 46 | 54 |
| 1960 | 4 | 52 | 66 |
| 1961 | 4 | 61 | 75 |
| 1962 | 5 | 77 | 86 |
| 1963 | 3 | 36 | 44 |
| 1964 | 3 | 90 | 106 |
| 1965 | 2 | 46 | 68 |
| 1965-66 | 1 | 2 | 2 |
| 1966 | 2 | 36 | 39 |
| 1968 | 3 | 34 | 44 |
| 1969 | 1 | 6 | 9 |
| 1970 | 4 | 36 | 52 |
| 1971 | 3 | 24 | 51 |
| 1972 | 3 | 39 | 50 |
| 1973 | 1 | 5 | 7 |
| 1974 | 1 | 7 | 9 |
| 1975 | 1 | 5 | 6 |
| 1976 | 1 | 5 | 17 |
| 1977 | 1 | 10 | 13 |
| 1978 | 1 | 9 | 14 |
| 1979 | 1 | 5 | 6 |
| 1979-80 | 1 | 1 | 1 |
| 1980 | 1 | 12 | 12 |
| 1980-81 | 2 | 2 | 2 |
| 1981 | 1 | 7 | 129 |
| 1981-82 | 1 | 1 | 1 |
| 1982 | 2 | 11 | 45 |
| 1983 | 4 | 13 | 27 |
| 1984 | 2 | 15 | 57 |
| 1985 | 3 | 18 | 29 |
| 1986 | 2 | 16 | 51 |
| 1987 | 2 | 15 | 32 |
| 1988 | 2 | 8 | 23 |
| 1989 | 7 | 19 | 58 |
| 1990 | 9 | 24 | 40 |
| 1990-91 | 1 | 1 | 1 |
| 1991 | 15 | 36 | 63 |
| 1992 | 7 | 8 | 12 |
| 1993 | 8 | 12 | 15 |
| 1994 | 9 | 11 | 14 |
| 1995 | 5 | 6 | 6 |
| 1996 | 8 | 9 | 10 |
| 1997 | 8 | 13 | 13 |
| 1998 | 15 | 18 | 19 |
| 1999 | 9 | 9 | 9 |
| 2000 | 32 | 35 | 98 |
| 2001 | 2 | 2 | 2 |
| 2002 | 11 | 12 | 12 |
| 2003 | 15 | 15 | 18 |
| 2003-04 | 1 | 1 | 1 |
| 2004 | 11 | 13 | 14 |
| 2005 | 14 | 16 | 18 |
| 2005-06 | 1 | 2 | 2 |
| 2006 | 10 | 11 | 13 |
| 2007 | 5 | 5 | 5 |
| 2008 | 9 | 10 | 10 |
| 2009 | 4 | 4 | 4 |
| 2010 | 4 | 10 | 12 |
| 2011 | 4 | 5 | 5 |
| 2012 | 5 | 6 | 6 |
| 2013 | 2 | 2 | 4 |
| 2014 | 4 | 5 | 8 |
| 2015 | 3 | 3 | 3 |
| 2016 | 2 | 2 | 2 |
| 2017 | 6 | 10 | 10 |
| 2018 | 13 | 20 | 20 |
| 2019 | 6 | 9 | 13 |
| 2020 | 25 | 84 | 116 |
| 2020-21 | 1 | 1 | 1 |
| 2021 | 28 | 133 | 191 |
| 2021-22 | 1 | 2 | 3 |
| 2022 | 21 | 78 | 91 |
| 2023 | 16 | 44 | 53 |
| 2023-24 | 1 | 1 | 1 |
| 2024 | 1 | 4 | 5 |