The line graph indicates the percentages of population surveyed on senior citizens aged 65 and over from 1940 to 2040 amongst Japan, Sweden and USA. At the first glance, it was obvious that there were an upward trend in three different countries, and it also provides that the prediction of the growing number of elders until the year 2040.
As seen on the graph, 5% of aged Japanese were in the year 1940. It went down slowly by 1960, and then leveled off until late 1980s (about 3%). Since then, it went slightly up at 5% of total population in Japan. As seen on the graph, we can readily project that there are a remarkable increase from late 2000s to 2030s. More importantly, around the 2030s, it skyrockets exponentially from 10% to 25%. In 2040s, the proportion of population for old Japanese appears to reach a peak at well over 25%.
On the other hand, the percentages of elders between USA and Sweden were at just under 10%, and about 7% respectively. Since then, there was the similar tendency between two countries until 2000s. Those rose smoothly around 1980s (approximately 10%), it had a steep upward trend by 1980s (nearly 15%). From this onward, the United States remain constant at about 15%, and it also provides us with information that the proportion of population aged people in the United States keep up the similar amount of 15% to 2030s.
Whilst, since 1980s, there was an immense growth in Sweden until 2010s (20%), and the population growth rate of aged 65 and over in Sweden appears to drop slightly around 2030s (well under 20%). It can be predicted by showing the graph, those two countries, USA and Sweden, steep unimaginably between 2030s and 2040 (Almost 25%).