| Year | Number of sets | Total items | Total graded |
|---|---|---|---|
| Totals | 1,308 | 6,168 | 15,654 |
| 1887 | 2 | 2 | 5 |
| 1887-90 | 1 | 1 | 1 |
| 1900 | 1 | 1 | 1 |
| 1909 | 4 | 5 | 9 |
| 1909-11 | 12 | 18 | 99 |
| 1910-11 | 1 | 1 | 1 |
| 1910-19 | 1 | 1 | 1 |
| 1911 | 15 | 15 | 232 |
| 1912 | 1 | 48 | 56 |
| 1913 | 2 | 2 | 9 |
| 1914 | 1 | 1 | 1 |
| 1916 | 2 | 11 | 11 |
| 1920 | 1 | 1 | 1 |
| 1921-22 | 1 | 1 | 2 |
| 1922 | 3 | 14 | 14 |
| 1924 | 1 | 1 | 1 |
| 1926 | 1 | 2 | 2 |
| 1929 | 2 | 2 | 2 |
| 1931 | 1 | 1 | 1 |
| 1932 | 1 | 1 | 1 |
| 1933 | 4 | 21 | 25 |
| 1933-34 | 1 | 1 | 1 |
| 1934 | 3 | 12 | 16 |
| 1934-36 | 2 | 3 | 3 |
| 1936 | 3 | 96 | 130 |
| 1937 | 2 | 13 | 15 |
| 1938 | 1 | 1 | 1 |
| 1939 | 3 | 11 | 19 |
| 1940 | 1 | 1 | 1 |
| 1941 | 2 | 8 | 9 |
| 1945-46 | 1 | 1 | 2 |
| 1947 | 1 | 1 | 3 |
| 1947-66 | 1 | 3 | 3 |
| 1948 | 4 | 14 | 20 |
| 1948-49 | 1 | 10 | 11 |
| 1949 | 2 | 6 | 7 |
| 1950 | 2 | 9 | 13 |
| 1951 | 5 | 25 | 37 |
| 1951-52 | 1 | 4 | 4 |
| 1952 | 3 | 241 | 493 |
| 1953 | 5 | 66 | 113 |
| 1953-55 | 1 | 1 | 1 |
| 1954 | 6 | 73 | 174 |
| 1955 | 2 | 48 | 160 |
| 1956 | 1 | 38 | 119 |
| 1957 | 1 | 58 | 130 |
| 1957-58 | 1 | 1 | 1 |
| 1958 | 2 | 67 | 221 |
| 1958-59 | 1 | 1 | 1 |
| 1959 | 4 | 52 | 165 |
| 1960 | 4 | 63 | 161 |
| 1961 | 7 | 108 | 262 |
| 1961-62 | 2 | 2 | 2 |
| 1962 | 7 | 146 | 364 |
| 1963 | 5 | 69 | 121 |
| 1963-64 | 2 | 2 | 2 |
| 1964 | 3 | 44 | 124 |
| 1965 | 4 | 78 | 200 |
| 1966 | 5 | 52 | 200 |
| 1966-67 | 2 | 2 | 2 |
| 1967 | 3 | 47 | 132 |
| 1968 | 3 | 55 | 249 |
| 1969 | 5 | 79 | 284 |
| 1970 | 4 | 79 | 196 |
| 1970-71 | 1 | 1 | 1 |
| 1971 | 5 | 103 | 255 |
| 1971-72 | 2 | 3 | 4 |
| 1972 | 5 | 102 | 205 |
| 1972-73 | 1 | 4 | 5 |
| 1973 | 5 | 55 | 156 |
| 1973-74 | 1 | 1 | 1 |
| 1974 | 2 | 36 | 106 |
| 1975 | 3 | 89 | 250 |
| 1975-76 | 1 | 1 | 1 |
| 1976 | 3 | 88 | 132 |
| 1977 | 4 | 39 | 109 |
| 1977-78 | 1 | 8 | 8 |
| 1978 | 4 | 44 | 219 |
| 1978-79 | 2 | 5 | 6 |
| 1979 | 3 | 39 | 124 |
| 1979-80 | 2 | 2 | 2 |
| 1980 | 4 | 39 | 153 |
| 1980-81 | 2 | 5 | 7 |
| 1981 | 8 | 71 | 147 |
| 1981-82 | 1 | 2 | 2 |
| 1982 | 10 | 61 | 317 |
| 1983 | 7 | 59 | 284 |
| 1983-84 | 1 | 1 | 1 |
| 1984 | 10 | 67 | 273 |
| 1985 | 10 | 69 | 325 |
| 1985-86 | 1 | 1 | 1 |
| 1986 | 10 | 71 | 244 |
| 1986-87 | 3 | 3 | 3 |
| 1987 | 23 | 128 | 871 |
| 1987-88 | 1 | 1 | 1 |
| 1988 | 21 | 86 | 191 |
| 1988-89 | 2 | 2 | 2 |
| 1989 | 32 | 165 | 1,236 |
| 1989-90 | 4 | 5 | 11 |
| 1990 | 35 | 197 | 864 |
| 1990-91 | 5 | 6 | 9 |
| 1991 | 44 | 249 | 585 |
| 1991-92 | 5 | 8 | 14 |
| 1992 | 34 | 138 | 303 |
| 1992-93 | 2 | 3 | 6 |
| 1993 | 36 | 118 | 385 |
| 1993-94 | 2 | 2 | 4 |
| 1994 | 40 | 118 | 255 |
| 1994-95 | 2 | 2 | 3 |
| 1995 | 31 | 81 | 140 |
| 1995-96 | 1 | 1 | 1 |
| 1996 | 22 | 101 | 141 |
| 1996-97 | 1 | 1 | 1 |
| 1997 | 20 | 78 | 98 |
| 1998 | 35 | 109 | 133 |
| 1998-99 | 2 | 4 | 5 |
| 1999 | 28 | 69 | 76 |
| 1999-00 | 2 | 8 | 10 |
| 2000 | 32 | 94 | 113 |
| 2001 | 38 | 92 | 143 |
| 2002 | 27 | 58 | 70 |
| 2003 | 20 | 29 | 37 |
| 2004 | 14 | 23 | 26 |
| 2005 | 22 | 49 | 86 |
| 2005-06 | 1 | 4 | 7 |
| 2006 | 13 | 59 | 82 |
| 2007 | 16 | 30 | 36 |
| 2008 | 13 | 15 | 16 |
| 2008-09 | 2 | 2 | 2 |
| 2009 | 6 | 6 | 6 |
| 2009-10 | 1 | 1 | 1 |
| 2010 | 9 | 11 | 11 |
| 2011 | 16 | 41 | 48 |
| 2012 | 13 | 39 | 55 |
| 2013 | 17 | 27 | 41 |
| 2014 | 12 | 19 | 47 |
| 2014-15 | 1 | 1 | 1 |
| 2015 | 9 | 12 | 14 |
| 2016 | 15 | 33 | 75 |
| 2017 | 24 | 57 | 108 |
| 2017-18 | 1 | 1 | 2 |
| 2018 | 39 | 106 | 215 |
| 2018-19 | 1 | 1 | 1 |
| 2019 | 40 | 129 | 219 |
| 2020 | 40 | 117 | 188 |
| 2020-21 | 1 | 1 | 1 |
| 2021 | 47 | 176 | 205 |
| 2021-22 | 1 | 1 | 1 |
| 2022 | 47 | 176 | 224 |
| 2022-23 | 1 | 1 | 1 |
| 2023 | 28 | 109 | 160 |
| 2023-24 | 3 | 5 | 5 |
| 2024 | 14 | 43 | 64 |
| 2024-25 | 4 | 5 | 5 |
| 2025 | 1 | 5 | 5 |