The ageing population is the most significant demographic trend to play out in the 21st century. Current trends suggest the older population (65 years and above) will overtake the child population (0–14 years) by the 2020s. The young (15–39) and midlife (40–64) populations will remain the largest groups, but will decline proportionally as the older population increases. The increase in the child population will be insignificant.
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Source: Statistics New Zealand