a    Projected estimate (medium fertility variant).
b    2015
c    Refers to the urban population of cantons.
d    2017
e    2016
f    Data classified according to ISIC Rev. 4.
g    Estimate.
h    Central area.
i    Break in the time series.
j    Calculated by the Statistics Division of the United Nations from national indices.
k    Data refers to a 5-year period preceding the reference year.
l    Including refugees.
m    Data as at the end of December.
n    2000
o    2013
p    2004
q    Population aged 5 years and over.
r    Users in the last 3 months.
s    2014