The graph illustrates the proportion of populations aged 65 and over in three countries : Japan( bitch) , USA, Sweden . from the above graph , we can see that the populations in these countries generally have an increasing trend.
The Sweden's percentage and the usa's percentage have the same increasing rate during 1940 to 1980 . During the following two decades THE percentage of Sweden rises from approximate 7.5 to about 14 and the percentage of USA jumps from 9 to 15. Meanwhile , the percentage of JAPAN drops to about 3 at 1960 and levels off. The Sweden's percentage passes the USA's percentage in 1998 , and then it keeps the same increasing rate ,finally reach a high point –20 . there's nothing changed in THE USA's percentage , but the Japan's percentage steadily grows . during 2020 to 2040 , three of all them increase at an amazing/extremely/shocking/soaring/ speed , especially Japan passes the rest of them and reached 27. Followed by Sweden with about 25 , usa ranks the last below 25.
According to the graph , we can find out an interesting situation that the rank of the percentages of the three countries at the beginning is just reversed at the end.
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