2023
- 2 Teams
2021
- 1 Team
2020
- 4 Teams
2019
- 4 Teams
2018
- 3 Teams
2017
- 4 Teams
2016
- 3 Teams
2015
- 2 Teams
2013-14
- 2 Teams
2012-13
- 4 Teams
2012
- 1 Team
2011-12
- 4 Teams
2010-11
- 8 Teams
2009-10
- 6 Teams
2008-09
- 7 Teams
2008
- 1 Team
2007-08
- 4 Teams
2007
- 1 Team
2006-07
- 3 Teams
2005-06
- 4 Teams
2004-05
- 4 Teams
2003-04
- 4 Teams
2002-03
- 4 Teams
2001-02
- 8 Teams
2000-01
- 7 Teams
1999-00
- 4 Teams
1998-99
- 6 Teams
1997-98
- 7 Teams
1996-97
- 4 Teams
1995-96
- 4 Teams
1994-95
- 3 Teams
1992-93
- 1 Team
1991-92
- 1 Team
1990-91
- 1 Team
