a    Including Ascension and Tristan da Cunha.
b    Projected estimate (medium fertility variant).
c    2015
d    2017
e    Population aged 15 to 69 years.
f    Data classified according to ISIC Rev. 3.
g    2008
h    Estimate.
i    Year ending 31 March of the following year.
j    Data refers to a 5-year period preceding the reference year.
k    2009
l    2012
m    2004
n    2014