a    Projected estimate (medium fertility variant).
b    2015
c    Including communities under the authority of the Town Council.
d    2017
e    2016
f    Data classified according to ISIC Rev. 4.
g    Estimate.
h    Data classified according to ISIC Rev. 3.
i    2014
j    Data refers to a 5-year period preceding the reference year.
k    Data as at the end of December.
l    2000
m    Population aged 16 years and over.
n    2004
o    Package tour only.
p    Excludes the Belarusian-Russian border segment.
q    Includes estimation of the Belarusian-Russian border segment.