Age structure: 0-14 years: 18.89% (male 5,778,415; female 5,486,114)
15-64 years: 65.41% (male 19,712,932; female 19,304,771)
65 years and over: 15.7% (male 3,895,921; female 5,469,637) (2001 est.)
Population growth rate: 0.23% (2001 est.)
Birth rate: 11.54 births/1,000 population (2001 est.)
Death rate: 10.35 deaths/1,000 population (2001 est.)
Net migration rate: 1.07 migrant(s)/1,000 population (2001 est.)
Sex ratio: at birth: 1.05 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 1.02 male(s)/female