a    Including Crimea.
b    Projected estimate (medium fertility variant).
c    2019
d    The Government of Ukraine has informed the United Nations that it is not in a position to provide statistical data concerning the Autonomous Republic of Crimea and the city of Sevastopol.
e    2020
f    Excludes irrigation canals and landscaping care.
g    Excludes publishing activities.
h    Includes irrigation canals.
i    Excludes repair of personal and household goods.
j    Estimate.
k    Data refers to a 5-year period preceding the reference year.
l    Data as at the end of December.
m    2018
n    2014
o    2009
p    2017
q    Data are as at 1 January of reporting year.
r    Users in the last 12 months.
s    Excluding data from some regions, provinces or states.