2023
- 1 Team
2021
- 1 Team
2020
- 2 Teams
2019
- 7 Teams
2018
- 14 Teams
2017
- 13 Teams
2016
- 8 Teams
2015
- 3 Teams
2014
- 6 Teams
2013
- 4 Teams
2012
- 7 Teams
2011
- 8 Teams
2010
- 8 Teams
2009
- 7 Teams
2008
- 10 Teams
2007
- 8 Teams
2006
- 12 Teams
2005
- 14 Teams
2004
- 13 Teams
2003
- 13 Teams
2002
- 13 Teams
2001
- 14 Teams
2000
- 14 Teams
1999
- 20 Teams
1998
- 24 Teams
1997
- 20 Teams
1996
- 13 Teams
1995
- 11 Teams
1994
- 7 Teams
1993
- 8 Teams
1992
- 8 Teams
1991
- 8 Teams
1990
- 11 Teams
1989
- 14 Teams
1988
- 10 Teams
1987
- 13 Teams
1986
- 15 Teams
1985
- 14 Teams
1984
- 17 Teams
1983
- 14 Teams
1982
- 16 Teams
1981
- 8 Teams
1980
- 7 Teams
