2023-24
- 4 teams
2023
- 9 teams
2022-23
- 4 teams
2022
- 10 teams
2021-22
- 6 teams
2021
- 5 teams
2020-21
- 5 teams
2019
- 5 teams
2018
- 3 teams
2017
- 5 teams
2016
- 7 teams
2015
- 5 teams
2014-15
- 1 team
2014
- 6 teams
2013
- 4 teams
2011
- 1 team
2010
- 1 team
2007
- 1 team
2006-07
- 1 team
2006
- 3 teams
2004
- 2 teams
2003
- 1 team
1998
- 5 teams
1996
- 6 teams
1994
- 1 team
1993
- 1 team
1992
- 1 team
1990
- 2 teams
1986
- 1 team
