Statistics for Top 5 Population by Category

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Category	Pop.	Answer	% Correct
Countries	1.43 b	China	99%
Countries	1.44 b	India	99%
U.S. States	39.0 m	California	97%
U.S. States	19.6 m	New York	97%
Countries	344 m	United States	97%
Languages (native speakers)	379 m	English	95%
Languages (native speakers)	480 m	Spanish	93%
U.S. States	30.5 m	Texas	92%
Cities	40.8 m	Tokyo	92%
Religions	2.1 b	Christianity	91%
Countries	278 m	Indonesia	91%
U.S. States	22.6 m	Florida	88%
Religions	1.5 b	Islam	88%
Languages (native speakers)	918 m	Mandarin	88%
Countries	243 m	Pakistan	81%
Cities	40.0 m	Shanghai	78%
Religions	380 m	Buddhism	75%
Islands	66.4 m	Great Britain	72%
Languages (native speakers)	341 m	Hindi	72%
Religions	900 m	Hinduism	72%
Cities	33.4 m	Delhi	71%
Islands	149 m	Java	70%
Languages (native speakers)	> 275 m	Arabic	68%
Cities	67.8 m	Guangzhou	68%
U.S. States	13.0 m	Pennsylvania	61%
Cities	28.9 m	Jakarta	58%
Religions	350 m	Confucianism	57%
Islands	103 m	Honshu	52%
Islands	59.2 m	Sumatra	51%
Islands	64.3 m	Luzon	41%