Central African Republic
total: 18.7 years
male: 18.4 years
female: 19 years (2008 est.)
Chad
total: 16.4 years
male: 15.2 years
female: 17.5 years (2008 est.)
Chile
total: 31.1 years
male: 30.1 years
female: 32.1 years (2008 est.)
China
total: 33.6 years
male: 33.1 years
female: 34.2 years (2008 est.)
Colombia
total: 26.8 years
male: 25.9 years
female: 27.8 years (2008 est.)
Comoros
total: 18.7 years
male: 18.5 years
female: 19 years (2008 est.)
Congo, Democratic Republic of the
total: 16.3 years
male: 16.1 years
female: 16.5 years (2008 est.)
Congo, Republic of the
total: 16.7 years
male: 16.5 years
female: 17 years (2008 est.)
Cook Islands
total: 29.8 years
male: 29 years
female: 30.4 years (2001 census)
Costa Rica
total: 27.1 years
male: 26.7 years
female: 27.6 years (2008 est.)