s)/female
65 years and over: 0.59 male(s)/female
total population: 0.97 male(s)/female (2004 est.)

Saint Pierre and Miquelon
at birth: 1.06 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 1.04 male(s)/female
65 years and over: 0.79 male(s)/female
total population: 1.01 male(s)/female (2004 est.)

Saint Vincent and the Grenadines
at birth: 1.03 male(s)/female
under 15 years: 1.04 male(s)/female
15-64 years: 1.06 male(s)/female
65 years and over: 0.77 male(s)/female
total population: 1.03 male(s)/female (2004 est.)

Samoa
at birth: 1.05 male(s)/female
under 15 years: 1.04 male(s)/female
15-64 years: 1.67 male(s)/female
65 years and over: 0.85 male(s)/female
total population: 1.39 male(s)/female (2004 est.)

San Marino
at birth: 1.09 male(s)/female
under 15 years: 1.07 male(s)/female
15-64 years: 0.94 male(s)/female
65 years and over: 0.76 male(s)/female
total population: 0.92 male(s)/female (2004 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: 0.85 male(s)/female
total population: 0.97 male(s)/female (2004 est.)

Saudi Arabia
at birth: 1.05 male(s)/female
under 15 years: 1.04 male(s)/female
15-64 years: 1.36 male(s)/female
65 years and over: 1.18 male(s)/female
total population: 1.22 male(s)/female (2004 est.)

Senegal
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: 0.93 male(s)/female
total population: 0.97 male(s)/female (2004 est.)

Serbia and Montenegro
at birth: 1.08 male(s)/female
under 15 years: 1.07 male(s)/female
15-64 years: 0.99 male(s)/female
65 years and over: 0.76 male(s)/female
total population: 0.97 male(s)/female (2004 est.)

Seychelles
at birth: 1.03 male(s)/female
under 15 years: 1.03 male(s)/female
15-64 years: 0.95 male(s)/female
65 years and over: 0.49 male(s)/female
total population: 0.93 male(s)/female (2004 est.)

Sierra Leone
at birth: 1.03 male(s)/female
under 15 years: 0.96 male(s)/female
15-64 years: 0.91 male(s)/female
65 years and over: 0.92 male(s)/female
total population: 0.93 male(s)/female (2004 est.)

Singapore
at birth: 1.08 male(s)/female
under 15 years: 1.07 male(s)/female
15-64 years: 0.96 male(s)/female
65 years and over: 0.79 male(s)/female
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