a    Projected estimate (medium fertility variant).
b    2019
c    2020
d    Estimate.
e    2018
f    Areas not elsewhere specified.
g    Data refers to a 5-year period preceding the reference year.
h    Including refugees.
i    Data as at the end of December.
j    Data revision.
k    2008
l    2014
m    2009
n    2017
o    2012
p    Data are as at 1 January of reporting year.
q    Users in the last month.
r    Population aged 18 years and over.