2024
- 7 teams
2023
- 12 teams
2022
- 12 teams
2021
- 8 teams
2020
- 9 teams
2019
- 10 teams
2018
- 10 teams
2017
- 10 teams
2016
- 11 teams
2015
- 8 teams
2014
- 6 teams
2013
- 11 teams
2012
- 9 teams
2011
- 8 teams
2010
- 9 teams
2009
- 7 teams
2008
- 5 teams
2007
- 6 teams
2006
- 7 teams
2005
- 6 teams
2004
- 6 teams
2003
- 7 teams
2002
- 4 teams
2001
- 3 teams
2000
- 3 teams
1999
- 2 teams
1997
- 3 teams
1995
- 1 team
1987
- 1 team
