| Year | Number of sets | Total items | Total graded |
|---|---|---|---|
| Totals | 750 | 3,171 | 5,523 |
| 1910 | 1 | 2 | 2 |
| 1920 | 1 | 1 | 1 |
| 1935 | 1 | 3 | 3 |
| 1940 | 1 | 1 | 1 |
| 1948 | 2 | 59 | 71 |
| 1950 | 1 | 53 | 64 |
| 1951 | 1 | 1 | 1 |
| 1952 | 5 | 48 | 58 |
| 1953 | 1 | 2 | 2 |
| 1954 | 2 | 3 | 3 |
| 1955 | 3 | 31 | 32 |
| 1956 | 5 | 27 | 32 |
| 1957 | 1 | 4 | 6 |
| 1958 | 3 | 50 | 62 |
| 1959 | 4 | 55 | 79 |
| 1960 | 4 | 55 | 75 |
| 1961 | 4 | 65 | 85 |
| 1961-62 | 1 | 2 | 2 |
| 1962 | 7 | 86 | 98 |
| 1963 | 4 | 41 | 51 |
| 1964 | 3 | 98 | 120 |
| 1965 | 3 | 59 | 88 |
| 1965-66 | 2 | 3 | 3 |
| 1966 | 2 | 40 | 46 |
| 1967 | 2 | 11 | 12 |
| 1968 | 2 | 38 | 61 |
| 1969 | 1 | 7 | 19 |
| 1970 | 4 | 41 | 75 |
| 1970-71 | 1 | 1 | 1 |
| 1971 | 3 | 50 | 115 |
| 1972 | 5 | 54 | 99 |
| 1973 | 1 | 18 | 55 |
| 1974 | 1 | 16 | 26 |
| 1975 | 1 | 11 | 27 |
| 1976 | 1 | 9 | 41 |
| 1976-77 | 1 | 1 | 1 |
| 1977 | 1 | 21 | 36 |
| 1978 | 1 | 13 | 37 |
| 1979 | 1 | 7 | 28 |
| 1979-80 | 1 | 1 | 1 |
| 1980 | 1 | 12 | 16 |
| 1980-81 | 1 | 1 | 1 |
| 1981 | 2 | 9 | 156 |
| 1981-82 | 1 | 1 | 1 |
| 1982 | 2 | 12 | 70 |
| 1983 | 10 | 24 | 68 |
| 1984 | 5 | 30 | 168 |
| 1984-85 | 1 | 1 | 1 |
| 1985 | 3 | 24 | 48 |
| 1986 | 2 | 19 | 117 |
| 1986-87 | 1 | 1 | 1 |
| 1987 | 3 | 22 | 149 |
| 1988 | 5 | 26 | 74 |
| 1988-89 | 1 | 1 | 1 |
| 1989 | 7 | 40 | 231 |
| 1989-90 | 1 | 1 | 1 |
| 1990 | 12 | 54 | 101 |
| 1990-91 | 1 | 1 | 1 |
| 1991 | 25 | 78 | 182 |
| 1992 | 10 | 14 | 36 |
| 1992-93 | 1 | 1 | 1 |
| 1993 | 12 | 17 | 22 |
| 1994 | 14 | 20 | 28 |
| 1995 | 15 | 22 | 49 |
| 1996 | 18 | 27 | 34 |
| 1997 | 14 | 26 | 28 |
| 1998 | 43 | 107 | 162 |
| 1998-99 | 1 | 1 | 1 |
| 1999 | 37 | 78 | 92 |
| 1999-00 | 1 | 1 | 1 |
| 2000 | 36 | 140 | 262 |
| 2001 | 14 | 16 | 18 |
| 2002 | 11 | 12 | 12 |
| 2003 | 16 | 17 | 20 |
| 2003-04 | 2 | 2 | 2 |
| 2004 | 16 | 27 | 29 |
| 2005 | 16 | 18 | 24 |
| 2005-06 | 2 | 3 | 3 |
| 2006 | 15 | 57 | 67 |
| 2007 | 12 | 18 | 18 |
| 2008 | 13 | 15 | 15 |
| 2009 | 7 | 9 | 10 |
| 2010 | 4 | 12 | 14 |
| 2011 | 9 | 15 | 23 |
| 2012 | 9 | 14 | 16 |
| 2013 | 12 | 16 | 22 |
| 2014 | 8 | 14 | 21 |
| 2015 | 6 | 11 | 13 |
| 2016 | 6 | 6 | 6 |
| 2017 | 11 | 22 | 24 |
| 2018 | 29 | 73 | 133 |
| 2019 | 13 | 28 | 32 |
| 2020 | 36 | 229 | 391 |
| 2020-21 | 2 | 3 | 3 |
| 2021 | 44 | 364 | 550 |
| 2021-22 | 1 | 2 | 3 |
| 2022 | 33 | 165 | 205 |
| 2023 | 19 | 67 | 80 |
| 2023-24 | 1 | 1 | 1 |
| 2024 | 8 | 36 | 46 |