The graph below shows the proportion of the population aged 65 and over between 1940 and 2040 in three different countries Summarise the information by selecting and reporting the main features and make comparisons where relevant Cambridge ielts 5 page 29

The line graph indicates the information about the percentage of people with the age 65 years old or over from 1940 to 2040 in Japan, Sweden and USA.
Begins from 1940, Sweden and USA reached over 5% and below 10%, in contrast, Japan was lower than 5%. On the one hand, from 1940 to 1980, Japan had a slightly decline while on the other hand, others raised dramatically to 15%.
From 1980 to mid-2020, USA remained stable with the percentage about 14%, Japan and Sweden were on their way to increase gradually. In the mid of 2020, three of them had significant inclines that Japan reach the peak of over 25% and others to 20%.