| Year | Number of sets | Total items | Total graded |
|---|---|---|---|
| Totals | 336 | 1,060 | 2,498 |
| 1923-24 | 1 | 1 | 17 |
| 1933-34 | 1 | 1 | 1 |
| 1936-37 | 1 | 1 | 5 |
| 1950 | 1 | 10 | 11 |
| 1951-52 | 1 | 63 | 128 |
| 1952-53 | 6 | 30 | 42 |
| 1954-55 | 1 | 1 | 4 |
| 1968-69 | 1 | 1 | 1 |
| 1969-70 | 1 | 1 | 1 |
| 1970 | 1 | 3 | 3 |
| 1970-71 | 2 | 2 | 3 |
| 1980-81 | 1 | 1 | 1 |
| 1981 | 1 | 1 | 1 |
| 1982 | 2 | 3 | 3 |
| 1982-83 | 1 | 1 | 1 |
| 1983 | 1 | 1 | 7 |
| 1983-84 | 2 | 3 | 4 |
| 1984 | 1 | 4 | 14 |
| 1985 | 1 | 5 | 17 |
| 1985-86 | 2 | 2 | 2 |
| 1986 | 2 | 2 | 2 |
| 1986-87 | 1 | 1 | 1 |
| 1987 | 1 | 1 | 1 |
| 1988 | 3 | 3 | 5 |
| 1989 | 3 | 10 | 48 |
| 1989-90 | 2 | 7 | 46 |
| 1990 | 3 | 3 | 3 |
| 1990-91 | 4 | 18 | 46 |
| 1991 | 10 | 19 | 46 |
| 1991-92 | 4 | 13 | 17 |
| 1992 | 7 | 14 | 40 |
| 1992-93 | 1 | 2 | 9 |
| 1993 | 6 | 16 | 22 |
| 1993-94 | 2 | 2 | 2 |
| 1994 | 7 | 14 | 19 |
| 1994-95 | 3 | 4 | 4 |
| 1995 | 5 | 10 | 10 |
| 1995-96 | 1 | 1 | 1 |
| 1996 | 4 | 9 | 9 |
| 1996-97 | 2 | 2 | 2 |
| 1997 | 3 | 4 | 4 |
| 1998 | 4 | 26 | 37 |
| 1998-99 | 1 | 1 | 1 |
| 1999 | 4 | 9 | 9 |
| 1999-00 | 3 | 3 | 3 |
| 2000 | 2 | 2 | 2 |
| 2000-01 | 1 | 4 | 4 |
| 2001-02 | 1 | 1 | 1 |
| 2002-03 | 3 | 3 | 3 |
| 2003 | 3 | 12 | 29 |
| 2003-04 | 2 | 3 | 6 |
| 2004 | 5 | 5 | 38 |
| 2004-05 | 6 | 45 | 260 |
| 2005 | 1 | 1 | 1 |
| 2005-06 | 6 | 85 | 234 |
| 2006 | 1 | 1 | 1 |
| 2006-07 | 3 | 20 | 23 |
| 2007 | 1 | 1 | 2 |
| 2007-08 | 3 | 10 | 11 |
| 2008-09 | 3 | 3 | 4 |
| 2009 | 2 | 4 | 9 |
| 2009-10 | 3 | 6 | 6 |
| 2010-11 | 4 | 8 | 8 |
| 2011 | 1 | 1 | 1 |
| 2011-12 | 2 | 8 | 19 |
| 2012 | 1 | 1 | 1 |
| 2012-13 | 3 | 15 | 42 |
| 2013-14 | 5 | 12 | 14 |
| 2014 | 2 | 3 | 12 |
| 2014-15 | 9 | 11 | 212 |
| 2015 | 6 | 13 | 135 |
| 2015-16 | 2 | 2 | 2 |
| 2016 | 2 | 2 | 2 |
| 2016-17 | 2 | 3 | 3 |
| 2017 | 5 | 6 | 7 |
| 2017-18 | 3 | 6 | 14 |
| 2018 | 6 | 17 | 45 |
| 2018-19 | 3 | 6 | 12 |
| 2019 | 3 | 11 | 14 |
| 2019-20 | 4 | 11 | 14 |
| 2020 | 8 | 43 | 68 |
| 2020-21 | 2 | 15 | 21 |
| 2021 | 32 | 102 | 175 |
| 2021-22 | 6 | 21 | 41 |
| 2022 | 22 | 59 | 64 |
| 2022-23 | 6 | 33 | 68 |
| 2023 | 12 | 40 | 76 |
| 2023-24 | 4 | 22 | 56 |
| 2024 | 5 | 29 | 44 |
| 2024-25 | 6 | 6 | 9 |
| 2025 | 4 | 4 | 6 |
| 2025-26 | 5 | 15 | 26 |