Syria
at birth: 1.06 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 1.03 male(s)/female
65 years and over: 0.86 male(s)/female
total population: 1.03 male(s)/female (2010 est.)

Taiwan
at birth: 1.086 male(s)/female
under 15 years: 1.08 male(s)/female
15-64 years: 1.02 male(s)/female
65 years and over: 0.92 male(s)/female
total population: 1.02 male(s)/female (2010 est.)

Tajikistan
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: 0.74 male(s)/female
total population: 0.99 male(s)/female (2010 est.)

Tanzania
at birth: 1.03 male(s)/female
under 15 years: 1.01 male(s)/female
15-64 years: 0.98 male(s)/female
65 years and over: 0.77 male(s)/female
total population: 0.98 male(s)/female (2010 est.)

Thailand
at birth: 1.054 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 0.98 male(s)/female
65 years and over: 0.82 male(s)/female
total population: 0.98 male(s)/female (2010 est.)

Timor-Leste
at birth: 1.05 male(s)/female
under 15 years: 1.03 male(s)/female
15-64 years: 1.04 male(s)/female
65 years and over: 0.9 male(s)/female
total population: 1.03 male(s)/female (2010 est.)

Togo
at birth: 1.03 male(s)/female
under 15 years: 1 male(s)/female
15-64 years: 0.96 male(s)/female
65 years and over: 0.63 male(s)/female
total population: 0.97 male(s)/female (2010 est.)

Tokelau
NA

Tonga
at birth: 1.05 male(s)/female
under 15 years: 1.04 male(s)/female
15-64 years: 0.99 male(s)/female
65 years and over: 0.7 male(s)/female
total population: 0.99 male(s)/female (2010 est.)

Trinidad and Tobago
at birth: 1.028 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 1.06 male(s)/female
65 years and over: 0.75 male(s)/female
total population: 1.02 male(s)/female (2010 est.)