Question: When did the team that John Nyskohus played for 45 times leave the Oceania Football Confederation?

full_context: Document 1: Australia national football team (disambiguation): Australia national soccer team "(The Socceroos)" is Australia's men's national soccer team.
Document 2: Australia national soccer team: The Australian national soccer team represents Australia in international men's soccer. Officially nicknamed the Socceroos, the team is controlled by the governing body for soccer in Australia, Football Federation Australia (FFA), which is currently a member of the Asian Football Confederation (AFC) and the regional ASEAN Football Federation (AFF) since leaving the Oceania Football Confederation (OFC) in 2006.
Document 3: Lucas Neill: Lucas Edward Neill (born 9 March 1978) is an Australian former footballer. Neill played as a defender, often playing as a centre back as well as a full back. Neill spent almost 15 years of his career playing in England. He represented Australia at the 2006 FIFA World Cup, the 2007 AFC Asian Cup, the 2010 FIFA World Cup in South Africa, and also the 2011 AFC Asian Cup in Qatar. On 6 October 2006 he was named the 50th captain of the Australian national team, and by the time of his retirement, had amassed a record 61 caps as captain. He played for Millwall, Blackburn Rovers, West Ham United, Everton, Galatasaray, Al Jazira, Al Wasl, Sydney FC, Omiya Ardija, Watford FC and Doncaster Rovers.
Document 4: West Adelaide SC: West Adelaide Soccer Club is an Australian soccer club from Adelaide, Australia currently playing in the National Premier Leagues South Australia. It participated in the National Soccer League from the 1977 season until the end of the 1998/99 season, except for the periods 1987–89 and 1990–91. It was also known as West Adelaide Hellas and Adelaide Sharks. They played in various blue and white strips, and played most of their NSL home games at Hindmarsh Stadium. The senior arm of the club re-formed in 2008 and is the FFSA National Premier League 2015 Premiers and 2015 Champions , coached by one of the former NSL players of the club, Paul Pezos.
Document 5: Newcastle Jets FC: Newcastle United Jets Football Club, commonly known as Newcastle Jets, is an Australian professional soccer club based in Newcastle, New South Wales. It competes in the country's premier competition, the A-League, under licence from Football Federation Australia (FFA). The club was formed in 2000 when it joined the National Soccer League (NSL) and was one of only three former NSL clubs to join in the formation of the A-League. Newcastle Jets have won one A-League championship, after defeating rivals Central Coast Mariners 1–0 in the 2008 A-League Grand Final. In 2009, Newcastle competed in the AFC Champions League for the first time, reaching the Round of 16. In May 2015, FFA revoked Newcastle's licence after owner Nathan Tinkler placed the club into voluntary administration. A new A-League club will be formed for the 2015–16 season, under the same name and colours. Since its establishment, the Newcastle Jets has had a reputation for signing high-profile players. Notable players who have represented the club include Emile Heskey, Kew Jaliens, Mário Jardel, Michael Bridges, Ned Zelić, Paul Okon, Francis Jeffers, David Carney, Joel Griffiths, and Ronald Vargas
Document 6: Australia national beach soccer team: The Australia national beach soccer team represents Australia in international men's beach soccer. The team is controlled by the governing body for association football in Australia, Football Federation Australia (FFA), which is currently a member of the Asian Football Confederation (AFC) and the regional ASEAN Football Federation (AFF) since leaving the Oceania Football Confederation (OFC) in 2006. The team's official nickname is the "Beach Socceroos".
Document 7: John Maisano: John Maisano (born 6 January 1979) is a current football coach in the NPL, business owner and an ex-Australian former professional footballer who played as midfielder. Maisano played for Atalanta in the Serie A, Westerlo in the Jupiler League, Helmond Sport, Marconi Stallions in the National Soccer League, Greenock Morton in the Scottish 3rd, 2nd and 1st division, Ayr United in the Scottish 2nd Division and Stranraer in the Scottish 1st Division. He also represented Australia in the 1995 FIFA U-17 World Championship, the 1999 FIFA U-20 World Youth Championship and toured with the Australian u/23 Olympic team to South Africa before retiring from professional football in 2006.Maisano Football Highlights
Document 8: Australia women's national soccer team: The Australian women's national soccer team represents Australia in international women's soccer at the senior level. The team is overseen by the governing body for soccer in Australia, Football Federation Australia (FFA), which is currently a member of the Asian Football Confederation (AFC) and the regional ASEAN Football Federation (AFF) since leaving the Oceania Football Confederation (OFC) in 2006. The team's official nickname is the Matildas (from the Australian folk song "Waltzing Matilda"), having been known as the Female Socceroos before 1995. The current team manager is Alen Stajcic.
Document 9: Central Coast Mariners FC: Central Coast Mariners Football Club is an Australian professional soccer club based in Gosford, on the Central Coast of New South Wales. It competes in the A-League, under licence from Football Federation Australia (FFA). The Mariners was founded in 2004 as one of the eight original A-League teams. It was the first professional sports club from the Gosford region to compete in a national competition. Despite being considered one of the smallest-market clubs in the league, Central Coast Mariners has claimed one A-League Championship from four Grand Final appearances and topped the table to win the A-League Premiership twice. The club has also appeared in the AFC Champions League four times.
Document 10: Australia women's national under-20 soccer team: The Australian women's national under-20 soccer team represents Australia in international women's under-20 soccer. The team is controlled by the governing body for soccer in Australia, Football Federation Australia (FFA), which is currently a member of the Asian Football Confederation (AFC) and the regional ASEAN Football Federation (AFF) since leaving the Oceania Football Confederation (OFC) in 2006. The team's official nickname is the "Young Matildas".
Document 11: Football NSW: Football NSW is the governing body for soccer in the Australian state of New South Wales with the exception of the northern regions of NSW (the governing body for which is Northern New South Wales Football). Football NSW is a member of the national governing body, the Football Federation Australia. Football NSW's premier football competition is the National Premier Leagues NSW. The premier futsal competition is the Futsal Premier League. Prior to 1 April 2007, Football NSW was known as Soccer NSW.
Document 12: John Barry Nusum: John Barry Nusum (born March 18, 1981 in Mineola, New York) is an American-born Bermudian retired football player.
Document 13: John Nyskohus: John Nyskohus (born 15 October 1951) is an Australian former soccer player who played club football for USC Lion in the South Australian State League and Adelaide City in the National Soccer League. He also played 45 times for Australia, including 25 in full international matches.
Document 14: Saša Ognenovski: Saša Ognenovski (Macedonian: Саша Огненовски ; born 3 April 1979) is an Australian football (soccer) player who plays as a central defender, who last played for Sydney FC in the A-League and the Australia national team, and is the vice captain of the former. In 2010, he was named Asian Footballer of the Year, won a position in the K-League Best XI, and won the AFC Champions League with Seongnam. These achievements led to his inclusion in the Australian squad for the 2011 AFC Asian Cup.
Document 15: Australia national under-17 soccer team: The Australia national under-17 Football team represents Australia in men's international under-17 Football. The team is controlled by the governing body for Football in Australia, Football Federation Australia (FFA), which is currently a member of the Asian Football Confederation (AFC) and the regional ASEAN Football Federation (AFF) since leaving the Oceania Football Confederation (OFC) in 2006. The team's official nickname is the "Joeys".
ground_truth: 2006