| Year | Number of sets | Total items | Total graded |
|---|---|---|---|
| Totals | 120 | 239 | 559 |
| 1936-37 | 1 | 1 | 5 |
| 1950 | 1 | 7 | 8 |
| 1951-52 | 1 | 6 | 13 |
| 1952-53 | 3 | 17 | 18 |
| 1954-55 | 1 | 1 | 4 |
| 1968-69 | 1 | 1 | 1 |
| 1969-70 | 1 | 1 | 1 |
| 1970-71 | 2 | 2 | 3 |
| 1982 | 1 | 1 | 1 |
| 1983 | 1 | 1 | 1 |
| 1984 | 1 | 1 | 1 |
| 1987 | 1 | 1 | 1 |
| 1988 | 1 | 1 | 1 |
| 1989 | 1 | 3 | 7 |
| 1989-90 | 1 | 3 | 31 |
| 1990 | 2 | 2 | 2 |
| 1990-91 | 2 | 3 | 18 |
| 1991 | 5 | 8 | 14 |
| 1991-92 | 1 | 1 | 1 |
| 1992 | 4 | 7 | 8 |
| 1992-93 | 2 | 3 | 4 |
| 1993 | 5 | 6 | 7 |
| 1993-94 | 1 | 1 | 1 |
| 1994 | 2 | 5 | 6 |
| 1994-95 | 1 | 1 | 1 |
| 1995 | 2 | 2 | 2 |
| 1995-96 | 1 | 1 | 1 |
| 1996-97 | 1 | 1 | 1 |
| 1997 | 1 | 1 | 1 |
| 1998 | 1 | 1 | 1 |
| 1998-99 | 1 | 1 | 1 |
| 2000-01 | 1 | 2 | 2 |
| 2001-02 | 1 | 1 | 1 |
| 2002-03 | 1 | 1 | 1 |
| 2003 | 1 | 1 | 1 |
| 2003-04 | 1 | 1 | 2 |
| 2004 | 2 | 2 | 3 |
| 2004-05 | 2 | 8 | 88 |
| 2005-06 | 3 | 7 | 40 |
| 2006-07 | 1 | 1 | 1 |
| 2007-08 | 1 | 2 | 2 |
| 2009 | 1 | 1 | 1 |
| 2009-10 | 2 | 3 | 3 |
| 2010-11 | 2 | 3 | 3 |
| 2011-12 | 1 | 2 | 3 |
| 2013-14 | 2 | 2 | 2 |
| 2014-15 | 3 | 3 | 4 |
| 2015 | 1 | 2 | 79 |
| 2017-18 | 1 | 1 | 1 |
| 2018 | 1 | 3 | 3 |
| 2019-20 | 2 | 2 | 2 |
| 2020 | 4 | 6 | 8 |
| 2020-21 | 2 | 3 | 6 |
| 2021 | 9 | 17 | 18 |
| 2021-22 | 5 | 12 | 16 |
| 2022 | 6 | 12 | 12 |
| 2022-23 | 4 | 27 | 39 |
| 2023 | 5 | 11 | 32 |
| 2023-24 | 4 | 7 | 16 |
| 2024 | 1 | 5 | 5 |