| Year | Number of sets | Total items | Total graded |
|---|---|---|---|
| Totals | 186 | 1,070 | 2,107 |
| 1908 | 1 | 1 | 1 |
| 1909 | 1 | 1 | 1 |
| 1915 | 1 | 1 | 1 |
| 1923 | 1 | 1 | 1 |
| 1935 | 1 | 1 | 1 |
| 1938 | 2 | 5 | 7 |
| 1948 | 2 | 3 | 3 |
| 1951 | 1 | 3 | 5 |
| 1956 | 1 | 1 | 1 |
| 1964 | 1 | 1 | 1 |
| 1980-81 | 1 | 1 | 1 |
| 1981-82 | 1 | 1 | 1 |
| 1982 | 2 | 39 | 79 |
| 1983 | 2 | 37 | 37 |
| 1984 | 1 | 1 | 1 |
| 1985 | 8 | 81 | 297 |
| 1986 | 3 | 26 | 37 |
| 1987 | 4 | 43 | 123 |
| 1988 | 2 | 8 | 9 |
| 1988-89 | 1 | 1 | 1 |
| 1989 | 2 | 2 | 3 |
| 1989-90 | 1 | 1 | 1 |
| 1990 | 1 | 42 | 119 |
| 1990-91 | 1 | 1 | 1 |
| 1991 | 11 | 29 | 82 |
| 1993 | 1 | 5 | 9 |
| 1994 | 1 | 1 | 1 |
| 1995 | 2 | 2 | 2 |
| 1997 | 2 | 2 | 2 |
| 1998 | 4 | 5 | 14 |
| 1999 | 3 | 3 | 5 |
| 2001 | 1 | 2 | 2 |
| 2003 | 1 | 1 | 1 |
| 2004 | 1 | 1 | 1 |
| 2006 | 2 | 9 | 10 |
| 2007 | 2 | 3 | 3 |
| 2008 | 5 | 17 | 18 |
| 2009 | 5 | 15 | 15 |
| 2010 | 8 | 11 | 11 |
| 2011 | 6 | 13 | 13 |
| 2012 | 6 | 65 | 93 |
| 2013 | 3 | 10 | 12 |
| 2014 | 5 | 126 | 266 |
| 2014-15 | 1 | 1 | 1 |
| 2015 | 7 | 161 | 333 |
| 2016 | 5 | 124 | 303 |
| 2017 | 3 | 7 | 9 |
| 2018 | 8 | 18 | 18 |
| 2019 | 2 | 2 | 2 |
| 2020 | 1 | 2 | 2 |
| 2021 | 12 | 20 | 22 |
| 2022 | 26 | 83 | 92 |
| 2023 | 6 | 24 | 27 |
| 2024 | 4 | 6 | 6 |