British Virgin Islands
at birth: 1.05 male(s)/female
under 15 years: 1.02 male(s)/female
15-64 years: 1.06 male(s)/female
65 years and over: 1.15 male(s)/female
total population: 1.06 male(s)/female (2003 est.)
Brunei
at birth: 1.06 male(s)/female
under 15 years: 1.04 male(s)/female
15-64 years: 1.13 male(s)/female
65 years and over: 0.89 male(s)/female
total population: 1.1 male(s)/female (2003 est.)
Bulgaria
at birth: 1.06 male(s)/female
under 15 years: 1.06 male(s)/female
15-64 years: 0.97 male(s)/female
65 years and over: 0.71 male(s)/female
total population: 0.93 male(s)/female (2003 est.)
Burkina Faso
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: 0.74 male(s)/female
total population: 0.97 male(s)/female (2003 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: 0.8 male(s)/female
total population: 0.99 male(s)/female (2003 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: 0.66 male(s)/female
total population: 0.98 male(s)/female (2003 est.)
Cambodia
at birth: 1.05 male(s)/female
under 15 years: 1.02 male(s)/female
15-64 years: 0.91 male(s)/female
65 years and over: 0.59 male(s)/female
total population: 0.94 male(s)/female (2003 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: 0.83 male(s)/female
total population: 1.01 male(s)/female (2003 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 over: 0.74 male(s)/female
total population: 0.98 male(s)/female (2003 est.)
Cape Verde
at birth: 1.03 male(s)/female
under 15 years: 1.02 male(s)/female
15-64 years: 0.93 male(s)/female
65 years and over: 0.62 male(s)/female
total population: 0.94 male(s)/female (2003 est.)