Statistics for Official Names of Countries

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Common name	Formal name	% Correct
China	People's Republic of China	96%
United States	United States of America	88%
Russia	Russian Federation	83%
Taiwan	Republic of China	67%
South Korea	Republic of Korea	67%
United Kingdom	United Kingdom of Great Britain and Northern Ireland	67%
France	French Republic	58%
North Korea	Democratic People's Republic of Korea	54%
Italy	Italian Republic	54%
Japan	Japan	54%
Spain	Kingdom of Spain	54%
Australia	Commonwealth of Australia	50%
Germany	Federal Republic of Germany	50%
Iran	Islamic Republic of Iran	50%
Oman	Sultanate of Oman	46%
Switzerland	Swiss Confederation	46%
Canada	Canada	38%
Monaco	Principality of Monaco	38%
Israel	State of Israel	38%
Luxembourg	Grand Duchy of Luxembourg	33%
Jordan	Hashemite Kingdom of Jordan	33%
Syria	Syrian Arab Republic	33%
Bolivia	Plurinational State of Bolivia	29%
Mexico	United Mexican States	29%
Ivory Coast	Republic of Côte d'Ivoire	25%
Uruguay	Oriental Republic of Uruguay	21%
Myanmar	Republic of the Union of Myanmar	21%
Brunei	Nation of Brunei, the Abode of Peace	17%