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Mauno Koivisto was 93 years old when he passed away on May 12, 2017. He was the 9th president of Finland, serving from 1982 to 1994. Koivisto was a career diplomat and politician who had previously served as prime minister of Finland from 1968 to 1970 and again from 1979 to 1982. He was a member of the Social Democratic Party of Finland.