The line chart illustrates the population of Japanese citizens at different ages between 1970 and 2040.
Overall, the age group between 25 to 64 recorded the highest proportions over the period. The figure of 0-14 decreased gradually which represents the lowest while 65 and above increased steadily and ranked second.
In terms of adults, in 1960, the percentage started with above 60% which stood at the top, climbing to exactly 70% by 1970 and 1990 despite a slight dip in 1980. After 30 years, the number kept falling from 60% to nearly 55%. Alternatives, it jumped back to around 60%.
Regarding the youngest, those aged 0-14 made up roughly% of the population in 1960. After peaking about 40% in 1970, the ratio declined throughout the period. By 2010, it had reduced to around 17%, and it is projected to reach only 10% in 2040, the least figure among all groups.
In contrast, the percentage of people aged 65 and over experienced significant growth. Beginning at just below 10% in 1960, the figure rose slowly until 2000 before increasing sharply to approximately over 20% in 2010. It is then predicted to continue climbing, reaching around 40% by 2040.