Cambodia
total: 19.91 years
male: 19.16 years
female: 20.79 years (2005 est.)
Cameroon
total: 18.6 years
male: 18.45 years
female: 18.76 years (2005 est.)
Canada
total: 38.54 years
male: 37.54 years
female: 39.56 years (2005 est.)
Cape Verde
total: 19.4 years
male: 18.62 years
female: 20.25 years (2005 est.)
Cayman Islands
total: 36.83 years
male: 36.48 years
female: 37.18 years (2005 est.)
Central African Republic
total: 18.12 years
male: 17.75 years
female: 18.5 years (2005 est.)
Chad
total: 16.02 years
male: 15.32 years
female: 16.71 years (2005 est.)
Chile
total: 30.07 years
male: 29.17 years
female: 31.05 years (2005 est.)
China
total: 32.26 years
male: 31.87 years
female: 32.67 years (2005 est.)
Colombia
total: 26.04 years
male: 25.14 years
female: 26.93 years (2005 est.)