The line graph shows the percentage of New Zealand population from 1950 to 2050. Summarize the information by selecting and reporting the main features and make comparisons where relevant.
Overall, of 4 age groups, the figure for people aged over 65 is always the highest over the period shown.
In 1950, senior residents in New Zealand accounted for over 60%, compared with around 25% of people aged 38-45, about 21% of citizens in the age range of 25 to 37, and approximately 5% of people are under 14. Over the next 50 years, the percentage of citizens aged over 65 and 38–45 both witnessed a decreasing fluctuation, falling to 60% and about 40% respectively. In contrast, after remaining stable from 1950 to 1990, the figure for residents in the age range of 0 to 14 showed a slight increase to 10%. Meanwhile, the proportion of citizens aged 25-37 decreased by around 11% and then stay unaltered.
In the next 50 years, the percentage of people who are 14 or younger is forecast to increase to 20%, while a plateau in the proportion of the 38-45 age group is expected. On the other hand, it is predicted that the figure for citizens aged 65 or more and 25-37 will both decrease by about 5% and around 9% roughly.
