The graph shows the proportion of population aged 65 and over in major developed countries.

The line graph delineates the percentage of elderly people between ages 65 and over throughout three developed countries, namely: the

USA

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,

Sweden

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, and

Japan

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In general, it is apparent that the proportion of old citizens in the three countries witnessed an upward trend over the period.

Furthermore

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, the

figures

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for these countries are predicted to rise significantly over a decade. In 1940, the population of elderly people in the

USA

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stayed at the top, accounting for roughly 10%, followed by

Sweden

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and

Japan

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, at 7% and 5%, respectively. Over the 40 years,

while

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the percentages of the

USA

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and

Sweden

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had risen steadily to 15% and nearly 14%, respectively, the

figures

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for

Japan

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dropped by 2% in 1980 From 1980 to 2000, the data for

Japan

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rose back to its original at 5%,

whereas

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, the

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for the

USA

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and

Sweden

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bucked the trend, with roughly 14% of the population aged 65 and over in the

USA

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and 13% for that in

Sweden

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. Throughout a period of 40 years, the

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for

Japan

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had risen significantly until reaching its peak at over 25% in 2040, followed by

Sweden

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and the

USA

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at 25% and 23%, respectively