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Trygve Lie of Norway (1946-1952) Dag Hammarskjold of Sweden (1953-1961) U Thant of Burma, now Myanmar, (1961-1971) Kurt Waldheim of Austria (1971-1981) Javiér Pérez de Cuellar of Peru (1981-1991) Boutros Boutros-Ghali of Egypt (1991-1996) Kofi Annan of Ghana (1996-2006) Ban Ki-moon of the Republic of Korea (2007-ongoing)
