| Year | Number of sets | Total items | Total graded |
|---|---|---|---|
| Totals | 872 | 5,857 | 15,484 |
| 1964 | 2 | 43 | 43 |
| 1974-75 | 1 | 1 | 1 |
| 1975-76 | 1 | 1 | 1 |
| 1979 | 1 | 3 | 3 |
| 1981 | 1 | 4 | 4 |
| 1984 | 1 | 2 | 2 |
| 1991 | 1 | 1 | 2 |
| 1993 | 8 | 12 | 181 |
| 1994 | 11 | 12 | 195 |
| 1995 | 7 | 7 | 18 |
| 1996 | 7 | 33 | 84 |
| 1997 | 12 | 57 | 119 |
| 1998 | 13 | 63 | 120 |
| 1999 | 28 | 349 | 4,281 |
| 2000 | 39 | 442 | 1,796 |
| 2001 | 12 | 172 | 541 |
| 2002 | 27 | 362 | 820 |
| 2003 | 27 | 177 | 234 |
| 2004 | 27 | 137 | 237 |
| 2005 | 22 | 79 | 90 |
| 2006 | 21 | 96 | 130 |
| 2007 | 24 | 110 | 136 |
| 2008 | 26 | 81 | 106 |
| 2009 | 20 | 110 | 142 |
| 2010 | 23 | 127 | 150 |
| 2011 | 15 | 93 | 112 |
| 2012 | 20 | 93 | 104 |
| 2013 | 22 | 117 | 184 |
| 2014 | 20 | 78 | 104 |
| 2015 | 22 | 108 | 138 |
| 2016 | 34 | 240 | 661 |
| 2017 | 41 | 216 | 339 |
| 2018 | 28 | 153 | 226 |
| 2018-19 | 1 | 1 | 1 |
| 2019 | 48 | 335 | 509 |
| 2020 | 61 | 390 | 812 |
| 2020-21 | 1 | 1 | 1 |
| 2021 | 64 | 653 | 1,466 |
| 2022 | 48 | 360 | 608 |
| 2023 | 37 | 332 | 508 |
| 2024 | 32 | 143 | 186 |
| 2024-25 | 1 | 1 | 1 |
| 2025 | 15 | 62 | 88 |