The graph below shows the proportion of the population aged 65 and over between 1940 and 2040 in three different countries. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The given line graph has provided information pertaining to the prediction of the percentage of people who are 65 years old or older in three countries between 1940 and 2040.

Overall

, the percentage of the elderly in all three countries saw an upward trend.

Additionally

, Japan had the highest number,

whereas

the opposite was true for the USA. Looking at the data in

further

detail, it can be seen that the 65-year-old or older people in the USA stood at just lower than 10% in 1940 before going up to 15% in 1980. After that, it fluctuated to about 14% in 2020 and was predicted to reach approximately 23% in 2040.

Similarly

, Sweden stood at about 7% in 1940,

then

it climbed to 13% between 1980 and 2000 and will shoot up to 25% in 2040. Turning to the remaining statistics, Japan's elderly percentage will double to 10% in 2030 from 5% in 1940. After that, it will reach its peak at 22%

at the end

of the timeframe.