| season | The number of registered | The number of people on the list of 18 | The number of play |
| 1994-2000 | 3 | 3 | 3 |
| 2001-2003(1) | 4 | 4 | 3 |
| 2004-2006 | 3 | 3 | 2 |
| 2007-2008 | 4 | 4 | 3 |
| 2009-2016(2) | 4 + ① | 4 + ① | 3 + ① |
| 2017 | 5 | 5 | 3 |
| 2018(3) | 4 | 4 | 3 |
| 2019 | 4 | 4 | 3 |
| 2020(4) | 6 | 5 | 4 |
| 2021 | 6 | 5 | 4 |