The table illustrates data about the total population of New Zealand between 2011 and 2012 by age types.
Overall, undoubtedly in 2012, the number of people was more than 2011 due to older generation.
Obviously, under 40 years old people had unnoticeable alterations. In 2011, under 15 years old people included 898,160 and after a year it contained 896,364 people with -0.2% reduction in population. Similarly, between 15 and 39 years old people were 1,577,256 before experiencing -0.2% reduction in change which is estimated 1,574,102 persons.
Nevertheless, it is clear that over 40 years old people had more changes in their age group. From 40 to 64 years old people included 1,331,907 in 2011, after a year they estimated 1,339,898 with +0.6% changes. Moreover, over 65 years old people contained 573,946, after a year they also added +0.4% alteration to their overall population.
In conclusion, the percentage of change of all ages estimated 4,381,269 in 2011, but in 2012, 4,410,284 people was estimated with +0.6% changes.