er: 0.74 male(s)/female

total population: 0.98 male(s)/female (2001 est.)

Cape Verde:
at birth: 1.03 male(s)/female

under 15 years: 1.02 male(s)/female

15-64 years: 0.91 male(s)/female

65 years and over: 0.64 male(s)/female

total population: 0.93 male(s)/female (2001 est.)

Cayman Islands:
at birth: 0.86 male(s)/female

under 15 years: 0.93 male(s)/female

15-64 years: 0.95 male(s)/female

65 years and over: 0.86 male(s)/female

total population: 0.94 male(s)/female (2001 est.)

Central African Republic:
at birth: 1.03 male(s)/female

under 15 years: 1.01 male(s)/female

15-64 years: 0.96 male(s)/female

65 years and over: 0.79 male(s)/female

total population: 0.98 male(s)/female (2001 est.)

Chad:
at birth: 1.04 male(s)/female

under 15 years: 1.01 male(s)/female

15-64 years: 0.9 male(s)/female

65 years and over: 0.71 male(s)/female

total population: 0.94 male(s)/female (2001 est.)

Chile:
at birth: 1.05 male(s)/female

under 15 years: 1.05 male(s)/female

15-64 years: 0.99 male(s)/female

65 years and over: 0.71 male(s)/female

total population: 0.98 male(s)/female (2001 est.)

China:
at birth: 1.09 male(s)/female

under 15 years: 1.1 male(s)/female

15-64 years: 1.06 male(s)/female

65 years and over: 0.89 male(s)/female

total population: 1.06 male(s)/female (2001 est.)

Colombia:
at birth: 1.03 male(s)/female

under 15 years: 1.02 male(s)/female

15-64 years: 0.95 male(s)/female

65 years and over: 0.81 male(s)/female

total population: 0.97 male(s)/female (2001 est.)

Comoros:
at birth: 1.03 male(s)/female

under 15 years: 1.01 male(s)/female

15-64 years: 0.97 male(s)/female

65 years and over: 0.91 male(s)/female

total population: 0.98 male(s)/female (2001 est.)

Congo, Democratic Republic of the:
at birth: 1.03 male(s)/female

under 15 years: 1.01 male(s)/female

15-64 years: 0.96 male(s)/female

65 years and over: 0.73 male(s)/female

total population: 0.98 male(s)/female (2001 est.)

Congo, Republic of the:
at birth: 1.03 male(s)/female

under 15 years: 1.01 male(s)/female

15-64 years: 0.95 male(s)/female

65 years and over: 0.67 male(s)/female

total population: 0.97 male(s)/female (2001 est.)

Costa Rica:
at birth: 1.05 male(s)/female

under 15 years: 1.05 mal