((1960, 1972, 1984, 1996, 2008, 2020))
((1961, 1973, 1985, 1997, 2009,2021))
((1962, 1974, 1986, 1998, 2010, 2022))
((1963, 1975, 1987, 1999, 2011, 2023))
((1964, 1976, 1988, 2000, 2012, 2024))
((1965, 1977, 1989, 2001, 2013, 2025))
((1966, 1978, 1990, 2002, 2014))
((1967, 1979, 1991, 2003, 2015))
((1968, 1980, 1992, 2004, 2016))
((1969, 1981, 1993, 2005, 2017))
((1970, 1982, 1994, 2006, 2018))
((1971, 1983, 1995, 2007, 2019))
