2024-25
- 18 teams
2023-24
- 8 teams
2022-23
- 16 teams
2021-22
- 2 teams
2020-21
- 6 teams
2019-20
- 3 teams
2018-19
- 16 teams
2017-18
- 3 teams
2016-17
- 4 teams
2014-15
- 9 teams
2012-13
- 6 teams
2011-12
- 4 teams
2010-11
- 10 teams
2009-10
- 4 teams
2008-09
- 4 teams
2007-08
- 5 teams
2006-07
- 9 teams
2005-06
- 3 teams
2004-05
- 5 teams
2003-04
- 7 teams
2002-03
- 15 teams
2001-02
- 12 teams
2000-01
- 10 teams
1999-00
- 9 teams
1998-99
- 19 teams
1997-98
- 7 teams
1996-97
- 12 teams
1978-79
- 1 team
1977-78
- 1 team
