Statistics for Largest Cities in the World Ending in 'o'

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Population	Region	Answer	% Correct
40.4 m	Asia	Tokyo	99%
22.4 m	Americas	São Paulo	92%
21.0 m	Africa	Cairo	91%
13.2 m	Americas	Rio de Janeiro	90%
7.25 m	Americas	Santiago	83%
7.85 m	Americas	San Francisco	80%
9.75 m	Americas	Chicago	77%
3.35 m	Americas	San Diego	76%
7.45 m	Americas	Toronto	76%
3.45 m	Americas	Orlando	70%
2.725 m	Americas	Quito	67%
4.0 m	Americas	Santo Domingo	64%
2.225 m	Americas	San Antonio	63%
1.86 m	Americas	Montevideo	50%
4.7 m	Africa	Kano	48%
2.5 m	Asia	Sapporo	44%
4.75 m	Asia	Colombo	43%
3.525 m	Africa	Bamako	35%
2.275 m	Africa	Maputo	31%
2.625 m	Americas	Maracaibo	27%
2.075 m	Americas	Sacramento	26%
3.275 m	Asia	Ningbo	21%
1.91 m	Asia	Aleppo	20%
6.1 m	Asia	Qingdao	20%
3.525 m	Asia	Zibo	14%