Age structure:

0-14 years: 15.5% (male 3,098,478/female 2,929,148)

15-64 years: 63.4% (male 12,382,422/female 12,227,512)

65 years and over: 21% (2024 est.) (male 3,753,829/female 4,403,424)

Definition:

This entry provides the distribution of the population according to age. Information is included by sex and age group as follows: 0-14 years (children), 15-64 years (working age), and 65 years and over (elderly).

Source: CIA World Factbook