| Year | Number of sets | Total items | Total graded |
|---|---|---|---|
| Totals | 402 | 3,214 | 4,531 |
| 1899 | 1 | 6 | 6 |
| 1901 | 1 | 1 | 1 |
| 1912 | 1 | 1 | 1 |
| 1922 | 1 | 1 | 1 |
| 1925 | 1 | 1 | 1 |
| 1930 | 2 | 2 | 2 |
| 1933 | 2 | 20 | 20 |
| 1933-40 | 1 | 2 | 2 |
| 1934 | 1 | 1 | 1 |
| 1935 | 1 | 1 | 1 |
| 1938 | 2 | 297 | 297 |
| 1939 | 1 | 1 | 1 |
| 1940 | 3 | 4 | 4 |
| 1941 | 4 | 8 | 8 |
| 1942 | 1 | 1 | 1 |
| 1947 | 1 | 3 | 4 |
| 1951 | 1 | 1 | 1 |
| 1952 | 4 | 60 | 61 |
| 1953 | 1 | 18 | 18 |
| 1954 | 3 | 21 | 26 |
| 1955 | 1 | 1 | 1 |
| 1956 | 4 | 12 | 12 |
| 1957 | 2 | 4 | 4 |
| 1958 | 3 | 9 | 10 |
| 1959 | 2 | 10 | 11 |
| 1960 | 1 | 1 | 1 |
| 1961 | 3 | 3 | 3 |
| 1962 | 7 | 53 | 59 |
| 1964 | 11 | 154 | 155 |
| 1965 | 6 | 164 | 171 |
| 1966 | 23 | 392 | 454 |
| 1967 | 2 | 16 | 16 |
| 1968 | 1 | 33 | 33 |
| 1969 | 2 | 2 | 2 |
| 1971-72 | 1 | 1 | 2 |
| 1973 | 3 | 8 | 26 |
| 1974 | 1 | 1 | 1 |
| 1975 | 2 | 2 | 41 |
| 1976 | 3 | 11 | 11 |
| 1977 | 10 | 420 | 990 |
| 1978 | 9 | 20 | 20 |
| 1979 | 5 | 12 | 17 |
| 1980 | 7 | 231 | 286 |
| 1981 | 1 | 5 | 6 |
| 1982 | 1 | 3 | 3 |
| 1983 | 7 | 51 | 61 |
| 1984 | 5 | 11 | 12 |
| 1984-85 | 1 | 1 | 1 |
| 1985 | 6 | 106 | 168 |
| 1986 | 2 | 14 | 14 |
| 1987 | 2 | 5 | 5 |
| 1988 | 2 | 2 | 2 |
| 1989 | 9 | 27 | 31 |
| 1990 | 7 | 149 | 341 |
| 1991 | 18 | 91 | 112 |
| 1992 | 17 | 162 | 212 |
| 1993 | 21 | 98 | 218 |
| 1994 | 11 | 65 | 102 |
| 1995 | 19 | 118 | 130 |
| 1996 | 8 | 64 | 71 |
| 1997 | 3 | 5 | 5 |
| 1998 | 4 | 8 | 8 |
| 1998-99 | 1 | 1 | 1 |
| 1999 | 1 | 1 | 2 |
| 2000 | 3 | 6 | 6 |
| 2001 | 4 | 7 | 7 |
| 2002 | 2 | 3 | 5 |
| 2003 | 2 | 3 | 3 |
| 2004 | 1 | 1 | 1 |
| 2005 | 3 | 3 | 4 |
| 2006 | 2 | 2 | 2 |
| 2007 | 1 | 3 | 8 |
| 2008 | 2 | 2 | 2 |
| 2009 | 5 | 5 | 5 |
| 2010 | 2 | 3 | 3 |
| 2011 | 2 | 2 | 2 |
| 2012 | 5 | 17 | 17 |
| 2013 | 8 | 31 | 42 |
| 2014 | 4 | 4 | 4 |
| 2015 | 9 | 15 | 15 |
| 2016 | 8 | 10 | 10 |
| 2017 | 5 | 32 | 32 |
| 2018 | 5 | 5 | 5 |
| 2019 | 3 | 3 | 3 |
| 2020 | 5 | 10 | 12 |
| 2021 | 6 | 15 | 15 |
| 2021-22 | 2 | 5 | 6 |
| 2022 | 8 | 8 | 11 |
| 2023 | 11 | 15 | 15 |
| 2023-24 | 1 | 1 | 1 |
| 2024 | 4 | 5 | 6 |
| 2025 | 1 | 1 | 1 |