| Year | Number of sets | Total items | Total graded |
|---|---|---|---|
| Totals | 177 | 475 | 720 |
| 1957-58 | 1 | 1 | 1 |
| 1961-62 | 1 | 10 | 10 |
| 1963 | 1 | 5 | 5 |
| 1977-78 | 1 | 24 | 40 |
| 1978-79 | 1 | 3 | 3 |
| 1980-81 | 1 | 3 | 3 |
| 1981-82 | 1 | 5 | 7 |
| 1985-86 | 1 | 1 | 1 |
| 1986 | 1 | 2 | 2 |
| 1986-87 | 2 | 9 | 9 |
| 1987-88 | 1 | 3 | 5 |
| 1988-89 | 1 | 12 | 16 |
| 1989-90 | 3 | 14 | 43 |
| 1990 | 1 | 1 | 3 |
| 1990-91 | 3 | 27 | 66 |
| 1991 | 2 | 7 | 9 |
| 1991-92 | 5 | 51 | 113 |
| 1992 | 1 | 1 | 1 |
| 1992-93 | 9 | 25 | 44 |
| 1993-94 | 6 | 13 | 22 |
| 1994 | 1 | 1 | 1 |
| 1994-95 | 2 | 2 | 2 |
| 1995-96 | 5 | 11 | 12 |
| 1996 | 2 | 7 | 7 |
| 1996-97 | 14 | 20 | 26 |
| 1996-98 | 1 | 1 | 1 |
| 1997 | 1 | 1 | 2 |
| 1997-98 | 9 | 13 | 17 |
| 1998 | 1 | 2 | 2 |
| 1998-99 | 11 | 27 | 31 |
| 1999 | 1 | 1 | 1 |
| 1999-00 | 2 | 9 | 12 |
| 2000-01 | 1 | 2 | 2 |
| 2001-02 | 1 | 1 | 1 |
| 2002 | 1 | 1 | 1 |
| 2003 | 1 | 1 | 1 |
| 2003-04 | 6 | 6 | 6 |
| 2004-05 | 1 | 1 | 1 |
| 2005-06 | 1 | 1 | 1 |
| 2006-07 | 1 | 1 | 1 |
| 2007 | 1 | 1 | 1 |
| 2007-08 | 1 | 1 | 1 |
| 2008-09 | 3 | 7 | 9 |
| 2009-10 | 3 | 4 | 4 |
| 2012-13 | 2 | 18 | 18 |
| 2013-14 | 2 | 2 | 2 |
| 2014-15 | 3 | 4 | 4 |
| 2015-16 | 1 | 1 | 1 |
| 2016-17 | 3 | 4 | 5 |
| 2017-18 | 2 | 2 | 2 |
| 2018-19 | 5 | 8 | 9 |
| 2019 | 1 | 1 | 1 |
| 2019-20 | 10 | 14 | 17 |
| 2020 | 1 | 2 | 2 |
| 2020-21 | 11 | 33 | 47 |
| 2021 | 2 | 2 | 2 |
| 2021-22 | 6 | 12 | 17 |
| 2022-23 | 6 | 9 | 9 |
| 2023-24 | 7 | 23 | 36 |
| 2024-25 | 1 | 1 | 2 |