The garph provides changes in the amount of the population aged 65 and over between 1940 and 2040 in three different countries
A quick glance at the graph reveals that the population aged 65 and over increased dramatically
The rate of population aged 65 and over in japan showed a slight downward trend, decreasing from 5% in 1940 until it remanin steady between 2000 and 2020 . from 2000 to 2040 it had soared to almost 27.5% , which was the highest rate of all.
On the other hand, during this 100-year period in sweden and USA , the older people followed a increased trend. In 1940 USA was by far the most popular of older population, with approx 9% in total 3 countries. After a forty-year period of erratic fluctuation, its figure increased dramatically to approximately 15% in 1980 and reached the maximum threshold in 2040 with about 25%. Similarly, sweden older people sharply increased over the whole timescale, ending the period at level 3 times its amount in the first year, namely around 23.75%.
It is worth noting that while other types of countries experienced changes, japan remained the highest popular older people throughout the period.