The graph gives information on the demographics of a particular country by age categories starting in 1960 and projected to 2040. As a general trend, the 65+ age group has expanded its share of the total population, while the share of the younger age groups has been declining, and is predicted to continue falling.
In the 1960s, the largest age group was the one between 15-64, accounting for around 55 percent of the total population. This was followed by the 0-14 age group, at 30 percent, and those over 65 were part of the smallest demographic. However, the youngest age group’s share declined over time, while that of the oldest increased – the proportion of the 65 and above age group had exceeded the proportion of 0-14 year olds by the mid 1990s.
Meanwhile, the portion of the 15-64 age group increased slightly in 1970 and 1990 to reach a peak of around 60 percent, before falling uniformly as well. By 2040, it is predicted that this age group and the 65+ one will be approximately equal.
