| Year | Number of sets | Total items | Total graded |
|---|---|---|---|
| Totals | 42 | 88 | 582 |
| 1981 | 1 | 2 | 7 |
| 1991 | 1 | 2 | 9 |
| 1995-96 | 1 | 1 | 2 |
| 1996 | 5 | 5 | 15 |
| 1997 | 2 | 2 | 2 |
| 2000 | 2 | 2 | 2 |
| 2000-01 | 1 | 1 | 3 |
| 2001 | 4 | 43 | 508 |
| 2002 | 4 | 5 | 7 |
| 2003 | 4 | 4 | 4 |
| 2005 | 1 | 1 | 1 |
| 2007 | 1 | 1 | 1 |
| 2008-09 | 1 | 1 | 1 |
| 2009 | 1 | 1 | 1 |
| 2009-10 | 1 | 1 | 1 |
| 2011 | 1 | 2 | 2 |
| 2012 | 2 | 2 | 2 |
| 2013 | 1 | 1 | 2 |
| 2014 | 2 | 2 | 3 |
| 2017 | 1 | 1 | 1 |
| 2019 | 1 | 1 | 1 |
| 2021 | 2 | 3 | 3 |
| 2023 | 1 | 1 | 1 |
| 2024 | 1 | 3 | 3 |