| Year | Number of sets | Total items | Total graded |
|---|---|---|---|
| Totals | 802 | 3,309 | 7,766 |
| 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 |
| 1972-73 | 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 | 18 | 35 |
| 1981 | 1 | 1 | 1 |
| 1981-82 | 1 | 20 | 43 |
| 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 | 2 | 2 | 2 |
| 1986 | 4 | 6 | 11 |
| 1986-87 | 5 | 41 | 293 |
| 1987-88 | 2 | 20 | 101 |
| 1988 | 5 | 5 | 6 |
| 1988-89 | 2 | 21 | 222 |
| 1989 | 6 | 7 | 10 |
| 1989-90 | 8 | 38 | 263 |
| 1990 | 5 | 5 | 8 |
| 1990-91 | 8 | 106 | 590 |
| 1991 | 9 | 23 | 235 |
| 1991-92 | 13 | 160 | 709 |
| 1992 | 11 | 23 | 39 |
| 1992-93 | 14 | 102 | 478 |
| 1993 | 3 | 4 | 4 |
| 1993-94 | 17 | 92 | 168 |
| 1994 | 14 | 27 | 77 |
| 1994-95 | 19 | 48 | 78 |
| 1995 | 4 | 4 | 6 |
| 1995-96 | 23 | 132 | 220 |
| 1996 | 8 | 17 | 24 |
| 1996-97 | 37 | 208 | 568 |
| 1996-98 | 1 | 1 | 1 |
| 1997 | 10 | 39 | 40 |
| 1997-98 | 31 | 158 | 224 |
| 1998 | 11 | 76 | 81 |
| 1998-99 | 39 | 278 | 499 |
| 1999 | 6 | 7 | 7 |
| 1999-00 | 38 | 126 | 145 |
| 2000 | 2 | 2 | 3 |
| 2000-01 | 25 | 54 | 64 |
| 2001 | 3 | 3 | 3 |
| 2001-02 | 14 | 20 | 28 |
| 2002 | 4 | 5 | 8 |
| 2002-03 | 16 | 34 | 39 |
| 2003 | 6 | 35 | 40 |
| 2003-04 | 38 | 127 | 286 |
| 2004 | 7 | 8 | 11 |
| 2004-05 | 16 | 38 | 52 |
| 2005-06 | 13 | 45 | 54 |
| 2006-07 | 9 | 28 | 32 |
| 2007 | 2 | 2 | 2 |
| 2007-08 | 12 | 23 | 30 |
| 2008-09 | 9 | 23 | 28 |
| 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 | 12 | 14 |
| 2016 | 1 | 1 | 3 |
| 2016-17 | 10 | 18 | 21 |
| 2017-18 | 9 | 17 | 18 |
| 2018 | 1 | 1 | 5 |
| 2018-19 | 15 | 61 | 77 |
| 2019 | 4 | 6 | 6 |
| 2019-20 | 36 | 128 | 197 |
| 2020 | 4 | 10 | 10 |
| 2020-21 | 30 | 192 | 498 |
| 2021 | 10 | 12 | 13 |
| 2021-22 | 21 | 103 | 200 |
| 2022 | 2 | 3 | 3 |
| 2022-23 | 14 | 67 | 99 |
| 2023 | 3 | 4 | 4 |
| 2023-24 | 16 | 86 | 183 |
| 2024 | 6 | 6 | 10 |
| 2024-25 | 2 | 5 | 8 |