The line chart compares the percentages of the elderly 
population
 in the Use synonyms
USA
, Use synonyms
Sweden
, and Use synonyms
Japan
 from 1940 and it Use synonyms
also
 gives a projection ò the Linking Words
ratio
 of senior Use synonyms
citizens
 in these countries till 2040.
Use synonyms
Overall
, Linking Words
it is clear that
 till 1990 the proportion of aged people in the Linking Words
USA
 was higher than that of Use synonyms
Japan
 and Use synonyms
Sweden
. After 2000, Use synonyms
this
 Linking Words
ratio
 in Use synonyms
Sweden
 went higher than that of the Use synonyms
USA
 and Use synonyms
Japan
. Use synonyms
Japan
 is expected to see the most dramatic changes in its elderly Use synonyms
population
 and projected that the Japanese elderly Use synonyms
population
 will rise dramatically in the coming decades.
In detail, around 9% Use synonyms
population
 in the Use synonyms
USA
 was 65 or older in 1940. Use synonyms
This
 Linking Words
ratio
 increased to 15% after four decades but after 1990, it declined by 1% and remained stable. It is estimated that around 23% of Use synonyms
citizens
 in the Use synonyms
USA
 will be either 65 or older in 2040. The percentage of Swedish elder people was 7% in 1940, and it rose gradually and exceeded the Use synonyms
USA
's proportion of senior Use synonyms
citizens
 in 1990. In 2040, one in every five Swedish would be 65 or older. 
Use synonyms
Besides
, 5% of Japanese were 65 or above in 1940 and the Linking Words
ratio
 declined and remained stable between 1960 and 1985. It soared by 2% Use synonyms
afterward
 and Change the spelling
afterwards
then
 climbed steadily. It is predicted that more than one-quarter Japanese Linking Words
population
 would be older Use synonyms
citizens
 in 2040 and Use synonyms
this
 Linking Words
ratio
 would be higher than that of the Use synonyms
USA
 and Use synonyms
Sweden
Use synonyms