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

The given diagram depicts how the

population

aged 65 and over altered in 3 countries from 1940 to 2040.

Overall

, the diagram shows a substantial increase in the elderly

population

across all three countries throughout the period.

Initially

, the USA had an elderly

population

of about 9% in 1940, after which it experienced a constant rise to 10% until 1960.

Subsequently

, it increased remarkably to nearly 16% in 1980, which was followed by a marginal fall of 3% in 2000. After declining, the figure for the USA saw a stagnation in the duration of the next 20 years.

This

followed

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was followed

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by a slight increase of almost 16%.It is predicted that starting from 2030 the graph will escalate to 23% approaching the highest point. At the start of the period, Japan represented 5%,

while

Sweden

stood at 7%. Afterwards, Japan witnessed a drop of 1 %,

whereas

Sweden

grew moderately by 4%. When

Sweden

soared by 8% in 1980, Japan leveled off until 1990. After remaining stable, the

population

of Japanese people experienced a gradual upturn until 2024, after which it is anticipated to rocket to 25%.

Consequently

, it is estimated to experience a small uplift in the remaining years hitting a peak at 26%. Simultaneously,

Sweden

decreased by 2% in 1990 , before witnessing a fluctuation in 2020.

Then

, it is forecasted to witness an upward trend of almost 2% finishing in 2040