the numbers of elderly people in three countries
In this figure, the proportion of population aged 65 and over was shown. There are three countries contained: Japan, Sweden, and USA. The proportions of those three countries are all positive; however, the ranking was not always the same.
From 1940 to 1980, the proportion of USA was the largest in the three countries. Sweden was the next, and Japan's was smallest. But between 1980 and 2000, Sweden's became larger than any other country. The proportion of USA was still larger than Japan. Finally, Japan's proportion took the highest place in 2030s. The point deserved to be focus is that the proportion of Japan had a dramatic increase in 2030s. It came from the bottom, and took the first place. It was incredible. Also, the increasing proportion of USA seems flat when compared with other two countries. This figure presented the increasing proportion of the three countries, and the different ranking of those countries.