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China, 19 times (from the first participation in 1985 until 2014): in every year from 1989 to 2014 except 1991, 1994, 1996, 1998, 2003, 2007; Soviet Union, 14 times: in 1963, 1964, 1965, 1966, 1967, 1972, 1973, 1974, 1976, 1979, 1984, 1986, 1988, 1991; Hungary, 6 times: in 1961, 1962, 1969, 1970, 1971, 1975;
United States, 6 times: in 1977, 1981, 1986, 1994, 2015, 2016; Romania, 5 times: in 1959, 1978, 1985, 1987, 1996; West Germany, 2 times: in 1982 and 1983; Russia, 2 times: in 1999 and 2007; Bulgaria, once: in 2003;[33] Iran, once: in 1998; South Korea, once: in 2012. East Germany, once: in 1968 |