The line graph given depicts the change in the population of three age group in a particular nation from 1960, with projections up to 2040.
Overall, the porpotion of the 65+ age group witnessed an upward trend and is expected to continue increasing in the future, while the reverse is true for all other age groups.By 2040, the elderly population is forecasted to surpass the youngest one.
In 1960, the number of people from 15 to 64 years old was around 55 percents. It then grew slightly to reach a peak at 60 percents in the following ten years before decreasing with some fluctuation and projected to fall by 2040.Similarly, about 30% of the youngest age group was seen in 1960. The figure hit a stalemate in 10 years from 1970 to 1980 after dropped minimally, with 5 percents recorded. Afterwards, the population decresed steadily and is expected to continue dropping and hit a trough at around 10%.
The 65+ age groups, on the other hand, was the smallest in population, which was account for about only 15 percents. Nevertheless, this age group has experienced an significant surge, approximately three times higher than at the start of the period and is forecasted to reach 45%, overtaking the 15-64 age groups.