2022-23
- 16 teams
2021-22
- 23 teams
2020-21
- 14 teams
2020
- 2 teams
2019-20
- 17 teams
2018-19
- 14 teams
2017-18
- 15 teams
2017
- 2 teams
2016-17
- 16 teams
2016
- 4 teams
2015-16
- 10 teams
2014-15
- 14 teams
2014
- 2 teams
2013-14
- 12 teams
2013
- 2 teams
2012-13
- 12 teams
2012
- 6 teams
2011-12
- 14 teams
2011
- 6 teams
2010-11
- 16 teams
2010
- 6 teams
2009-10
- 12 teams
2009
- 3 teams
2008-09
- 10 teams
2007-08
- 10 teams
2006-07
- 16 teams
2005-06
- 8 teams
2004-05
- 5 teams
2003-04
- 7 teams
2002-03
- 3 teams
2001-02
- 4 teams
2000
- 1 team
1999-00
- 1 team
1993-94
- 1 team
