The league consists of 25 teams for the 2011 season.

In its first years the league consisted of 20 or more participants.

In its first season the league consisted of 12 teams.

The league began in 1953 and consists of ten teams.

For the first time, the league consisted of 26 teams from 7 different countries.

The league consisted of 18 teams, who played each other just once.

The league consisted of six to eight teams from 1923 until 1993.

The League consisted of 15 teams for the 2005 season.

The League consisted of eight teams for the 2008 season.

Starting with the 1995/96 season, the first league consisted of 14 teams.