Statistics for Chess World Number Ones

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Nationality	Years	Player	% Correct
United States	1971-1974	Bobby Fischer	100%
Russia	1984-2006	Garry Kasparov	100%
Norway	2010-present	Magnus Carlsen	100%
Soviet Union	1976-1983,1985	Anatoly Karpov	96%
India	2007-2008, 2010-2011	Viswanathan Anand	96%
Russia	1996, 2008	Vladimir Kramnik	85%
Hungary	1989-2015	Judit Polgar	70%
Bulgaria	2006,2008-2009	Veselin Topalov	70%
China	2015-present	Hou Yifan	59%
Hungary/USA	1984, 2005	Susan Polgar	59%
Sweden	1983-1984	Pia Cramling	30%
Soviet Union/Georgia	1980-1983, 1985-1988	Maia Chiburdanidze	7%
Soviet Union/Georgia	1971-1979	Nona Gaprindashvili	7%