New Zealand Atlas of Population Change

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Period Maps: The contribution of natural change maps by period indicate the percentage of total population change for each area accounted for by natural increase (the difference between births and deaths). The contribution of net migration maps indicate the percentage of total population change for each area accounted for by net migration (internal and international combined). The contribution of total net change maps indicate the combined contribution of natural increase and net migration to total change for each area.

Age Group Time-Series Maps: The contribution of natural change maps by age indicate the percentage of total change for each age group accounted for by change in cohort size, for each area. The contribution of net migration maps indicate the percentage of total change for each age group accounted for by net migration (internal and international combined), for each area. The contribution of total net change maps indicate the combined contribution of change in cohort size and net migration to total change for each age group, for each area.

The data have been annualised for each period. See for additional detail and methodological notes. The data are drawn from the Royal Society Marsden project The ebbing of the human tide. What will it mean for the people? (project also known as Tai timu tangata. Taihoa e?) and converted for visualisation by the CaDDANZ Population Atlas research team.