Despite attracting less media attention, spectators and sponsorship than Australian rules football and rugby league, soccer is Australia's highest participation football code. During the second half of the 20th century many Australian soccer clubs were based around ethnic groups, mostly European. However, the national league was completely reformed in 2004. Australia's national team, the Socceroos, has competed in the finals of five FIFA World Cup championships. In 2006 the Socceroos moved from the Oceania Football Confederation to the Asian Football Confederation, a much stronger confederation which has allowed the Australian team to avoid repetition of a history of missed World Cup qualifications in forced sudden-death playoffs. Australia won the 2015 AFC Asian Cup. Major international stars from Australia include Tim Cahill, Mark Viduka, Mark Schwarzer and Harry Kewell.