2024-25
- 10 teams
2023-24
- 12 teams
2022-23
- 10 teams
2021-22
- 10 teams
2020-21
- 9 teams
2016-17
- 2 teams
2015-16
- 2 teams
2014-15
- 4 teams
2013-14
- 3 teams
2011-12
- 3 teams
2008-09
- 4 teams
2007-08
- 4 teams
2006-07
- 6 teams
2005-06
- 8 teams
2004-05
- 4 teams
2003-04
- 7 teams
2002-03
- 6 teams
2001-02
- 10 teams
2000-01
- 16 teams
1999-00
- 15 teams
1998-99
- 12 teams
1997-98
- 11 teams
1996-97
- 31 teams
1995-96
- 33 teams
1994-95
- 31 teams
1993-94
- 31 teams
1992-93
- 32 teams
1991-92
- 31 teams
1990-91
- 29 teams
1989-90
- 24 teams
1988-89
- 3 teams
