2023
- 5 teams
2022-23
- 7 teams
2022
- 8 teams
2021-22
- 7 teams
2021
- 9 teams
2020-21
- 5 teams
2020
- 7 teams
2019-20
- 5 teams
2019
- 4 teams
2018
- 4 teams
2017-18
- 3 teams
2017
- 3 teams
2015-16
- 1 team
2015
- 4 teams
2014
- 4 teams
2013
- 2 teams
2012
- 3 teams
2011
- 4 teams
2010
- 5 teams
2009
- 4 teams
2008
- 5 teams
2007
- 5 teams
2006
- 7 teams
2005
- 7 teams
2004
- 8 teams
2003
- 5 teams
2002
- 4 teams
2001
- 5 teams
2000-01
- 2 teams
2000
- 4 teams
1999-00
- 3 teams
1999
- 4 teams
1998-99
- 6 teams
1998
- 6 teams
1997-98
- 8 teams
1997
- 6 teams
1996-97
- 9 teams
1996
- 15 teams
1995-96
- 6 teams
1995
- 14 teams
1994
- 14 teams
1993
- 13 teams
1989
- 1 team
