The chart illustrates the share of total population in 4 countries (A, B, C, and D) in 1950, 2002, and estimations for 2050.
Overall,one noticeable feature is that Country B is more likely to have the largest share of the population, whilst Country D’s population will comprise only a small proportion. Another point worth mentioning is that only Country A’s population is projected to increase, while the population of the rest countries are expected to experience a downward trend.
In 1950, Country B accounted for the largest proportion of the population, at 23%, followed by Country A with 15%. Country C and Country D had relatively a small proportions, at around 7% and 4% respectively. By 2002, the population of Country A had increased to around 17%, while Country B’s share declined slightly to 20%. Similarly, both Country C and Country D dropped notably to 5% and about 3% respectively.
Looking ahead to 2050, the population of Country A is estimated to observe a slight rise to approximately 19%, while Country B’s share is projected to decline by 5%, dropping to 15%. In contrast, the percentages of Country C is forecasted to remain at 5%, whereas Country D is predicted to decrease sharply to just under 1%.