The line graph illustrates the number of people in different age in a particular country from 1960 to 2040, with the future estimates.
Overall, at the beginning of the period, the population aged 15-64 accounted for the largest percentage of the figures all recorded and predicted, but decreased towards the end of the period. Additionally, the percentage of people aged 65 and over increased dramatically during the period, while the number of people aged 0-14 decreased gradually.
The age group 15-64 made up the greatest of the population during the beginning and the end period. In 1960, the percentage of people aged from 15-64 comprised around 57%, after that it had fluctuated over the next three years before starting to drop slowly, reach 50% in 2020. It is estimated that the proportion of aged 15-64 will decrease continue to reach 45% at the end of the period. A significant decrease was seen in the number of people aged from 0 to 14. In 1960, this aged group accounted for 30%, then over the next decade it dropped by 5% and remained stable for the next 10 years. Over the next 40 years it declined slightly from 20% in 1990 to 11% in 2020 and it is expected to reach 10% by the year 2040.
In 1960, around 15% of the population were people aged over 65. This figure then levelled off in 1970, whereas the percentage of people over 65 increased moderately over the next five decades, reaching 35% in 2020. However, the number of people over 65 is predicted to reach 45% by the end of this period.