2023-24
- 8 teams
2023
- 2 teams
2022-23
- 8 teams
2022
- 4 teams
2021-22
- 6 teams
2021
- 3 teams
2020-21
- 8 teams
2020
- 6 teams
2019-20
- 5 teams
2019
- 10 teams
2018-19
- 8 teams
2018
- 6 teams
2017-18
- 5 teams
2017
- 6 teams
2016-17
- 4 teams
2016
- 3 teams
2015
- 4 teams
2014-15
- 2 teams
2014
- 4 teams
2013-14
- 1 team
2012
- 5 teams
2011-12
- 1 team
2011
- 4 teams
2010
- 5 teams
2006
- 3 teams
2005-06
- 1 team
2004
- 2 teams
1994
- 3 teams
1993-94
- 1 team
1992
- 1 team
1990
- 1 team
1989
- 1 team
1984
- 1 team
