2025
- 12 teams
- 11 brands
2024
- 20 teams
- 18 brands
2023
- 20 teams
- 15 brands
2022
- 20 teams
- 16 brands
2021
- 20 teams
- 17 brands
2020
- 20 teams
- 18 brands
2019
- 20 teams
- 17 brands
2018
- 20 teams
- 15 brands
2017
- 20 teams
- 12 brands
2016
- 20 teams
- 16 brands
2015
- 20 teams
- 13 brands
2014
- 20 teams
- 12 brands
2013
- 21 teams
- 16 brands
2012
- 20 teams
- 15 brands
2011
- 20 teams
- 17 brands
2010
- 20 teams
- 15 brands
2009
- 18 teams
- 15 brands
2008
- 48 teams
- 32 brands
2007
- 33 teams
- 24 brands
2006
- 33 teams
- 28 brands
2005
- 26 teams
- 24 brands
2004
- 21 teams
- 22 brands
2003
- 40 teams
- 28 brands
2002
- 28 teams
- 22 brands
2001
- 23 teams
- 23 brands
2000
- 24 teams
- 22 brands
1999
- 19 teams
- 17 brands
1998
- 29 teams
- 23 brands
1997
- 23 teams
- 17 brands
1996
- 23 teams
- 15 brands
1995
- 31 teams
- 19 brands
1994
- 12 teams
- 9 brands
1993
- 2 teams
- 2 brands
1992
- 14 teams
- 7 brands
1990
- 13 teams
- 7 brands
1988
- 8 teams
- 8 brands
1987
- 4 teams
- 3 brands
1981
- 2 teams
- 1 brand
