2022
- 28 teams
- 1 brand
2021
- 28 teams
- 1 brand
2020
- 26 teams
- 1 brand
2019
- 25 teams
- 1 brand
2018
- 24 teams
- 1 brand
2017
- 23 teams
- 1 brand
2016
- 21 teams
- 1 brand
2015
- 21 teams
- 1 brand
2014
- 20 teams
- 1 brand
2013
- 20 teams
- 1 brand
2012
- 20 teams
- 1 brand
2011
- 19 teams
- 1 brand
2010
- 17 teams
- 1 brand
2009
- 16 teams
- 1 brand
2008
- 15 teams
- 1 brand
2007
- 14 teams
- 1 brand
2006
- 13 teams
- 1 brand
2005
- 12 teams
- 3 brands
2004
- 10 teams
- 5 brands
2003
- 9 teams
- 4 brands
2002
- 10 teams
- 5 brands
2001
- 12 teams
- 5 brands
2000
- 12 teams
- 5 brands
1999
- 12 teams
- 5 brands
1998
- 12 teams
- 4 brands
1997
- 10 teams
- 3 brands
