The graph below shows the proportion of the population aged 65 and over between 1940 and 2040 in three different countries.

This

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graph compares the evolution of people aged 65 and over between 1940 and 2040 in three different countries, the USA, Sweden and Japan.

Overall

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, the evolution of the US and Sweden is very constant and regular,

while

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the Japanese are more aggressive. In general, the curve started to increase faster in the 1960s,

this

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is not the case for Japan, which started in the 2000s. In Sweden in 1940 7% of the population was 65 years old or over,

this

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number decreased notably in 1980 when it grew to 14%, and in 40 years the number of old people doubled.

In addition

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, in the US the evolution is quite similar, except in the 2010s when the difference was 6%. Getting interested in Japan, we can realize that contrary to the other two countries, between 1940 and 2000 the proportion of the elderly was under 5% and it was not until the 2000s that started to rise. Nowadays, in the 2020s

this

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number is growing very fast and

according to

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the picture, in 2040 the percentage will be 27%.