The graph below shows the proportion of the population aged 65 and over between 1940 and 2040 in three differnt countries. Summarise the information by selecting and reporting the main features.

The given line graph illustrates the percentage of citizens aged 65 and over in 100

years

from 1940 to 2040 in the USA, Sweden, and

Japan

. Units are measured in percentage.

Overall

, it can clearly be seen that the proportion in all of the countries rose throughout the given period.

Moreover

,

Japan

had the biggest increase over the

years

. In terms of food with the highest proportion at the start, the USA started at just below 10 in 1940. It

then

experienced a dramatic growth to precisely 15 in 1980. In the following 40

years

, the number decreased slightly by approximately 2 before it started growing and reached its peak at about 23 in 2040. Regarding the other two countries with lower proportions, Sweden and

Japan

stood at around 7 and exactly 5, respectively. The population above 65

years

old in Sweden experienced a fluctuation.

However

, the number skyrockets in 100

years

to precisely 25 by 2040. The percentage in

Japan

decreased slightly by around 2 in 1990 before it started growing rapidly and witnessed a steep increase from 2030 to 2033.

Then

the number peaked at about 27.