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

The graph below illustrates the proportion of population aged 65 and over for the period of 1940 -2040 in Japan, Sweden and USA.

It can be easily seen that the percentages of people aged 65 and over were closely changing in Sweden and USA, while the percentage in Japan had not reached 5 % during 1940-1996. After 1996, when the curves of Sweden and USA coincided, the difference between them became greater, to be more precise, the number of people aged 65 and over rose steadily and reached 20 %, whereas the percentage was stable in USA during that period.

Meanwhile, the quantity of indicated people began to rise in Japan since 2005, and it is considered that, the indicator of Japan will be maximum among three countries after 2030.

Finally, the major conclusion drawn from this chart is that, although there were fluctuations until 2030, it is anticipated that the proportions will not sharply differ during 2030-2040.