a    Projected estimate (medium fertility variant).
b    2015
c    Refers to the localities of the Northern Harbour and Southern Harbour.
d    2017
e    2016
f    Data classified according to ISIC Rev. 4.
g    Estimate.
h    2014
i    Data refers to a 5-year period preceding the reference year.
j    Data as at the end of December.
k    2004
l    Population aged 16 to 74 years.
m    Provisional data.
n    Departures by air and by sea.