total population: 1.02 male(s)/female (2001 est.)

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

under 15 years: 1.01 male(s)/female

15-64 years: 0.93 male(s)/female

65 years and over: 0.68 male(s)/female

total population: 0.95 male(s)/female (2001 est.)

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

under 15 years: 1.04 male(s)/female

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

65 years and over: 0.68 male(s)/female

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

British Virgin Islands:
at birth: 1.05 male(s)/female

under 15 years: 1.03 male(s)/female

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

65 years and over: 1.18 male(s)/female

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

Brunei:
at birth: 1.06 male(s)/female

under 15 years: 1.04 male(s)/female

15-64 years: 1.14 male(s)/female

65 years and over: 0.92 male(s)/female

total population: 1.1 male(s)/female (2001 est.)

Bulgaria:
at birth: 1.06 male(s)/female

under 15 years: 1.05 male(s)/female

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

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

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

Burkina Faso:
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: 0.73 male(s)/female

total population: 0.95 male(s)/female (2001 est.)

Burma:
at birth: 1.06 male(s)/female

under 15 years: 1.04 male(s)/female

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

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

total population: 0.99 male(s)/female (2001 est.)

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

under 15 years: 1.02 male(s)/female

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

65 years and over: 0.7 male(s)/female

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

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

under 15 years: 1.04 male(s)/female

15-64 years: 0.89 male(s)/female

65 years and over: 0.69 male(s)/female

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

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

under 15 years: 1.02 male(s)/female

15-64 years: 1.01 male(s)/female

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

total population: 1.01 male(s)/female (2001 est.)

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

under 15 years: 1.05 male(s)/female

15-64 years: 1.01 male(s)/female

65 years and ov