| Year | Number of sets | Total items | Total graded |
|---|---|---|---|
| Totals | 828 | 3,685 | 8,524 |
| 1948 | 1 | 7 | 8 |
| 1955 | 1 | 1 | 1 |
| 1957-58 | 1 | 14 | 22 |
| 1961 | 1 | 1 | 1 |
| 1961-62 | 1 | 46 | 89 |
| 1963 | 1 | 5 | 5 |
| 1969-70 | 1 | 19 | 30 |
| 1970-71 | 1 | 14 | 19 |
| 1971 | 1 | 1 | 1 |
| 1971-72 | 2 | 9 | 12 |
| 1972 | 1 | 2 | 2 |
| 1972-73 | 1 | 6 | 12 |
| 1973-74 | 1 | 3 | 6 |
| 1974-75 | 1 | 5 | 10 |
| 1975-76 | 1 | 6 | 18 |
| 1976-77 | 1 | 2 | 2 |
| 1977-78 | 1 | 44 | 98 |
| 1978-79 | 1 | 4 | 4 |
| 1979-80 | 1 | 11 | 12 |
| 1980 | 1 | 2 | 2 |
| 1980-81 | 1 | 19 | 40 |
| 1981 | 1 | 1 | 1 |
| 1981-82 | 1 | 30 | 99 |
| 1982 | 1 | 1 | 1 |
| 1983 | 2 | 3 | 3 |
| 1983-84 | 1 | 2 | 2 |
| 1984 | 2 | 2 | 2 |
| 1984-85 | 1 | 3 | 3 |
| 1985 | 1 | 3 | 3 |
| 1985-86 | 3 | 3 | 3 |
| 1986 | 4 | 6 | 11 |
| 1986-87 | 5 | 41 | 293 |
| 1987-88 | 2 | 20 | 105 |
| 1988 | 5 | 5 | 6 |
| 1988-89 | 2 | 22 | 224 |
| 1989 | 6 | 7 | 10 |
| 1989-90 | 8 | 38 | 272 |
| 1990 | 5 | 5 | 8 |
| 1990-91 | 8 | 108 | 612 |
| 1991 | 9 | 23 | 235 |
| 1991-92 | 13 | 163 | 723 |
| 1992 | 11 | 23 | 39 |
| 1992-93 | 14 | 103 | 490 |
| 1993 | 3 | 4 | 4 |
| 1993-94 | 17 | 92 | 173 |
| 1994 | 14 | 27 | 77 |
| 1994-95 | 20 | 85 | 134 |
| 1995 | 4 | 4 | 6 |
| 1995-96 | 23 | 143 | 238 |
| 1996 | 8 | 21 | 30 |
| 1996-97 | 39 | 226 | 612 |
| 1996-98 | 1 | 1 | 1 |
| 1997 | 10 | 39 | 40 |
| 1997-98 | 32 | 181 | 256 |
| 1998 | 12 | 138 | 154 |
| 1998-99 | 40 | 298 | 543 |
| 1999 | 6 | 7 | 7 |
| 1999-00 | 39 | 147 | 189 |
| 2000 | 2 | 2 | 3 |
| 2000-01 | 28 | 62 | 75 |
| 2001 | 3 | 3 | 3 |
| 2001-02 | 14 | 21 | 30 |
| 2002 | 5 | 6 | 9 |
| 2002-03 | 16 | 34 | 39 |
| 2003 | 6 | 35 | 40 |
| 2003-04 | 39 | 159 | 328 |
| 2004 | 7 | 8 | 11 |
| 2004-05 | 16 | 39 | 54 |
| 2005-06 | 13 | 45 | 54 |
| 2006-07 | 11 | 32 | 37 |
| 2007 | 2 | 2 | 2 |
| 2007-08 | 12 | 23 | 30 |
| 2008-09 | 9 | 25 | 30 |
| 2009 | 1 | 1 | 1 |
| 2009-10 | 8 | 17 | 22 |
| 2010-11 | 5 | 7 | 9 |
| 2011 | 1 | 1 | 1 |
| 2011-12 | 3 | 5 | 46 |
| 2012 | 6 | 7 | 9 |
| 2012-13 | 10 | 36 | 44 |
| 2013-14 | 7 | 9 | 10 |
| 2014 | 1 | 1 | 1 |
| 2014-15 | 6 | 16 | 19 |
| 2015 | 1 | 1 | 1 |
| 2015-16 | 7 | 16 | 19 |
| 2016 | 1 | 1 | 3 |
| 2016-17 | 10 | 19 | 23 |
| 2017-18 | 9 | 19 | 20 |
| 2018 | 1 | 1 | 5 |
| 2018-19 | 16 | 67 | 89 |
| 2019 | 5 | 7 | 8 |
| 2019-20 | 38 | 140 | 230 |
| 2020 | 4 | 10 | 10 |
| 2020-21 | 30 | 205 | 562 |
| 2021 | 11 | 13 | 14 |
| 2021-22 | 22 | 110 | 230 |
| 2022 | 3 | 4 | 4 |
| 2022-23 | 14 | 71 | 106 |
| 2023 | 3 | 4 | 4 |
| 2023-24 | 18 | 141 | 264 |
| 2024 | 6 | 7 | 11 |
| 2024-25 | 3 | 7 | 11 |