The chart abbow shows Japan’s population growth from 1960 to 2040 and residents age from 0-65+.In this graph we can see children, adults and elder people.
In the red line we can see the percentage of younger generation from 0-14. From time to time the population of youngers declined and showed that to 2010 there would be much more people with age of 25 to 64.
In the yellow line it is not a secret that there are huge difference between green and red lines, this line represents middle aged people and elder people from age 25 to 64. Through all the time we can see that this line was stable and in the highest point of the graph.
When it comes to green line it is clear that from 1960 to 2010 elder group aged 65+ is significantly increased than younger group of people.
In conclusion there would be less and lesser childrens and much more elder group from age of 65 to the 2040. In turn of adult, they are going to be stable through all the time.