65 years and over: 0.75 male(s)/female
total population: 0.93 male(s)/female (2001 est.)
Sao Tome and Principe: 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: 0.84 male(s)/female
total population: 0.97 male(s)/female (2001 est.)
Saudi Arabia: at birth: 1.05 male(s)/female
under 15 years: 1.04 male(s)/female
15-64 years: 1.41 male(s)/female