The line graph illustrates how the populace of a certain country has changed since 1960, with projections extending until 2040.
Overall, the data confirm population aging in the country: whereas the shares of people aged 0-14 and 15-64 have gradually declined – a trend estimated to continue through 2040 – the figures for elderly residents aged 65 and over have generally increased and are likely to rise in the near future.
Looking at the ratios of the three age categories up to the present, the proportions of people aged between 0 and 64 have declined, albeit in slightly different patterns; around 55% of the whole population consisted of citizens aged 15-64 in 1960, and this rate increased notably, peaking at 60% the following decade. Having leveled out until 1990, this proportion went down gradually to 50% by 2020. Meanwhile, the shares of young children aged 0-15 started at 30% and, over the years, has fallen to approximately 10%. By contrast, the proportion of senior residents has witnessed a rise, increasing from roughly 15% to over 33% at present.
Turning to the future estimates, the trends are likely to remain constant. The figures for people aged 0 to14 and 15 to 64 are likely to drop to 10% and 45% respectively. The ratio of elderly citizens, however, is predicted to go uo, reaching the level as the 15-to-64-year-old age group (45%).