User:InflatableSupertrooper/IWC


 * Key

League systems

 * 1992: Played from February to June. 12 clubs in double round-robin format with 2 points for a win.
 * 1992–93: Expanded to 16 clubs in a double round-robin format.
 * 1993–94: Expanded again to 18 clubs.
 * 1994–95: Reduced to 16 clubs, 3 points for a win introduced.
 * 1995–96: League split into A and B groups played over two stages. In the first stage group A featured 12 clubs and group B featured 10 clubs who played each other twice. In the second stage top five teams from group A were joined by the top placed team from group B to play a 10-round home and away championship mini-league.
 * 1996–97: A and B groups expanded to 16 teams each. Each group played each other twice. At the end of the season bottom three clubs in group A and bottom 13 clubs in group B were directly relegated. Teams placed 11th-13th in group A and 1st-3rd in group B played contested an additional relegation play-off.
 * 1997–99: League reduced to 12 clubs. Each team played each other twice and then split into separate mini-leagues - top six would contest a championship group and bottom six a relegation group in a double-round robin format for a total of 32 rounds. This was the first system which was employed two seasons in a row.
 * 1999–2000: The 12 teams played a triple round-robin format for 33 rounds in a season.
 * 2000–01: The two-phase format with mini-leagues returned, this time with clubs keeping half of their points won in the first double-round robin phase in the championship and relegation groups in the second part of the season.
 * 2001–02: League expanded to 16 teams, playing each other twice for a total of 30 rounds.
 * 2002–06: League reduced to 12 clubs and returned to a two-stage format employed in the 2000–01 season. This format was used for four seasons.
 * 2006–09: League returned to simple 12 team triple round-robin format for a total of 33 rounds. This was used for three seasons.
 * 2009–12: League expanded to 16 teams, playing each other twice for a total of 30 rounds. Used for three seasons.
 * 2012–13: League reduced again to 12 clubs and returned to a triple round-robin system.
 * 2013–14: League further reduced to 10 teams, playing each other four times for a total of 36 rounds. This is the longest used system to date, still in use as of 2017–18 season.