15-64 years: 49.75% (male 2,518,400; female 2,633,677)
65 years and over: 2.28% (male 123,589; female 111,955) (2001 est.)
Nigeria: 0-14 years: 43.71% (male 27,842,225; female 27,514,197)
15-64 years: 53.47% (male 34,456,738; female 33,259,194)
65 years and over: 2.82% (male 1,780,862; female 1,782,410) (2001 est.)
Niue:
0-14 years: NA%
15-64 years: NA%
65 years and over: NA%
Norfolk Island: 0-14 years: NA%
15-64 years: NA%