ver: 0.78 male(s)/female
total population: 1 male(s)/female (2004 est.)

Niger
at birth: 1.03 male(s)/female
under 15 years: 1.04 male(s)/female
15-64 years: 0.96 male(s)/female
65 years and over: 1.11 male(s)/female
total population: 1 male(s)/female (2004 est.)

Nigeria
at birth: 1.03 male(s)/female
under 15 years: 1.01 male(s)/female
15-64 years: 1.04 male(s)/female
65 years and over: 0.98 male(s)/female
total population: 1.02 male(s)/female (2004 est.)

Niue
NA (2004 est.)

Norfolk Island
NA

Northern Mariana Islands
at birth: 1.06 male(s)/female
under 15 years: 1.09 male(s)/female
15-64 years: 0.72 male(s)/female
65 years and over: 0.97 male(s)/female
total population: 0.79 male(s)/female (2004 est.)

Norway
at birth: 1.05 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 1.03 male(s)/female
65 years and over: 0.72 male(s)/female
total population: 0.98 male(s)/female (2004 est.)

Oman
at birth: 1.05 male(s)/female
under 15 years: 1.04 male(s)/female
15-64 years: 1.49 male(s)/female
65 years and over: 1.17 male(s)/female
total population: 1.27 male(s)/female (2004 est.)

Pakistan
at birth: 1.05 male(s)/female
under 15 years: 1.06 male(s)/female
15-64 years: 1.05 male(s)/female
65 years and over: 0.94 male(s)/female
total population: 1.05 male(s)/female (2004 est.)

Palau
at birth: 1.06 male(s)/female
under 15 years: 1.07 male(s)/female
15-64 years: 1.18 male(s)/female
65 years and over: 0.91 male(s)/female
total population: 1.14 male(s)/female (2004 est.)

Panama
at birth: 1.05 male(s)/female
under 15 years: 1.04 male(s)/female
15-64 years: 1.03 male(s)/female
65 years and over: 0.9 male(s)/female
total population: 1.02 male(s)/female (2004 est.)

Papua New Guinea
at birth: 1.05 male(s)/female
under 15 years: 1.03 male(s)/female
15-64 years: 1.07 male(s)/female
65 years and over: 0.89 male(s)/female
total population: 1.05 male(s)/female (2004 est.)

Paraguay
at birth: 1.05 male(s)/female
under 15 years: 1.03 male(s)/female
15-64 years: 1.01 male(s)/female
65 years and over: 0.86 male(s)/female
total population: 1.01 male(s)/female (2004 est.)

Peru
at birth: 1.05 male(s)/female
under 15 years: 1.04 male(s)/female
15-64 years: 1.01 male(s)/female
65 years and over: 0.89 male(s)/female
total population: 1.01 male(s)/female (2004 est.)

Philip