The line graph illustrates the percentage of inhabitants aged 65 and older in three different nations (USA, Sweden and Japan) between 1940 and its prediction in 2040.

The line graph illustrates the percentage of inhabitants aged 65 and older in three different nations (USA,

Sweden

and

Japan

) between 1940 and its prediction in 2040. Generally, the figure of the elderly who lived in the US and

Sweden

increased over the period,

while

in

Japan

declined throughout the half-century.

However

, it is forecasted that

Japan

will become the biggest population among others in 2040. In 1940, the US had a higher proportion of senior citizens which accounted for 9% than

Sweden

at 7% and it gradually rose in the next 40 years by 6%. In 1980, the US saw a slight decline to around 14%,

whereas

Sweden

increased gradually which led to overtaking the US in 2020 at 20% and it is predicted to increase by 5% in 2040.

However

, the US is predicted to have the lowest percentage at 23% in 2040.

In contrast

,

Japan

started with 5% in 1940 as the lowest percentage compared to other countries and slowly declined by 2% before it experienced an increase in 2000 at 27%. Afterwards, it is anticipated to rise sharply to 25% in 2030 and reach a peak in a decade at just above 25%.