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

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The presented line graph demonstrates proportion of senior citizen in the USA, Japan, and Sweden in a century period between 1940 and 2040. In general, there has been an increase of elder population in all countries observed since 1940 and is predicted to jump up gradually until 2040.

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The given line graph compares the aged people of Sweden, the USA and Japan from 1940 and gives projection till 2040. As is observed from the line graph, initially in 1940, the proportion of aged people who were over 64 years old was between 5 to 10 percent.