a    Projected estimate (medium fertility variant).
b    2015.
c    Break in the time series.
d    2016.
e    The capital rotates yearly between the three atolls of Atafu, Fakaofo and Nukunomu, each with fewer than 500 inhabitants in 2011.
f    2014.
g    Data refers to a 5-year period preceding the reference year.
h    2012.
i    2001.
j    2006.
k    Estimate.
l    2003.
m    2004.