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 relevent.

The provided line graph illustrates an upward trend in the proportion of senior citizens aged 65 years and over in three different countries, namely the USA, Sweden, and

Japan

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, during the given timeframe.

Overall

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, it can be observed that Sweden experienced a significant increase in the population of elderly people,

whereas

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the figures for the USA and

Japan

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fluctuated throughout the century from 1940 to 2040. Importantly,

Japan

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recorded the highest proportion of elderly people, reaching nearly 27% by the end of the period.

According to

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the data, the population of older citizens in

Japan

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remained stable until 1990, and

then

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rose to a peak of approximately 27 per cent in 2040.

On the other hand

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, the fraction of elderly inhabitants in the USA showed irregular changes, ranging from nearly 9% and approximately 15% between 1940 and 1980, before reaching 23 per cent by the end of the century. Turning our attention to the second set of data, it is evident that Sweden’s elderly cohort experienced fluctuations

while

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generally increasing. The figure began at around 7% in 1940, rose to nearly 13% in 1980, dipped slightly to about 12.5% in 1990, and

then

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climbed steadily to reach 25% by the end of the century