years: 0.96 male(s)/female
65 years and over: 0.8 male(s)/female
total population: 0.98 male(s)/female (2005 est.)
Bosnia and Herzegovina
at birth: 1.07 male(s)/female
under 15 years: 1.06 male(s)/female
15-64 years: 1.05 male(s)/female
65 years and over: 0.75 male(s)/female
total population: 1.01 male(s)/female (2005 est.)
Botswana
at birth: 1.03 male(s)/female
under 15 years: 1.03 male(s)/female
15-64 years: 0.93 male(s)/female
65 years and over: 0.63 male(s)/female
total population: 0.96 male(s)/female (2005 est.)
Brazil
at birth: 1.05 male(s)/female
under 15 years: 1.04 male(s)/female
15-64 years: 0.98 male(s)/female
65 years and over: 0.7 male(s)/female
total population: 0.98 male(s)/female (2005 est.)
British Virgin Islands
at birth: 1.02 male(s)/female
under 15 years: 1.02 male(s)/female
15-64 years: 1.06 male(s)/female
65 years and over: 1.12 male(s)/female
total population: 1.05 male(s)/female (2005 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: 0.9 male(s)/female
total population: 1.09 male(s)/female (2005 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: 0.71 male(s)/female
total population: 0.93 male(s)/female (2005 est.)
Burkina Faso
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: 0.71 male(s)/female
total population: 0.97 male(s)/female (2005 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: 0.79 male(s)/female
total population: 0.99 male(s)/female (2005 est.)
Burundi
at birth: 1.03 male(s)/female
under 15 years: 1.02 male(s)/female
15-64 years: 0.98 male(s)/female
65 years and over: 0.65 male(s)/female
total population: 0.99 male(s)/female (2005 est.)
Cambodia
at birth: 1.05 male(s)/female
under 15 years: 1.02 male(s)/female
15-64 years: 0.92 male(s)/female
65 years and over: 0.57 male(s)/female
total population: 0.94 male(s)/female (2005 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: 0.82 male(s)/female
total population: 1.01 male(s)/female (200
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