The table illustrates the differences in the population of New Zealand between 2011 and 2012 among various age categories. Notably, all groups of ages witnessed an upward trend throughout the period shown. While there was a similar trend seen in those of 40-64 and over 65, those of under 15 and 15-39 saw an opposite one.
The data reveals that the total residents of New Zealand from all ages stood at around 4.3 million in 2011, with the population of the 15-39 age group made up the most, over 1.5 million. To be more precise, the figures for 40-64 and under 15 were noticeably lower, at 1.3 and 0.9 million respectively. Additionally, in the first same year, it is the group of older people aged 65 or over that ranked the bottom among four categories, close to 0.6 million.
At the end of the period shown, there were various changes observed in those age brackets. The percentage of change in the data of all ages and 40-64 experienced the same rate of increment, at approximately 0.6%. Significantly, in the same year, the 65 and over group witnessed a surge, at 4.0%, populating nearly 0.6 million. In contrast, the under 15 and between 15 and 39’s demographic groups only saw a 0.2% decrease