The line chart give information about the individuals living in a particular country, which category age group from 1960 to 2025. Overall, the two age groups, included under 14 years old and between 15 and 64 years old, reduce, while the over 65 age increases dramatically during the period shown.
To begin with, the between 15 and 64 age group accounts for the majority of total population. In particular, the rate of this fluctuate and reach a peak at 60% in 1990, then go down significantly to under 50% in 2025. Furthermore, the proportion of under 14 years old group has the same pattern, reducing from 30% in 1960 to a tenth in 2025. Noticeably, this figure in 1990 is equal to the percentage of the over 65 age group in the same year.
In contrast, the rate of over 65 years old group has significant upward trend from 1960 to 2025, which go up continuously from over 10% to under a half of population from 1960 to 2025. This figure in 2025 is as much as the between 15 to 64 years old in the same year.