a    Including Abkhazia and South Ossetia.
b    2017
c    2019
d    2018
e    Excludes publishing activities. Includes irrigation and canals.
f    Excludes repair of personal and household goods.
g    Excludes computer and related activities and radio/TV activities.
h    Estimate.
i    Data refer to 5 cities only.
j    2016
k    Data refers to a 5-year period preceding the reference year.
l    Data as at the end of December.
m    As a result of recent health-care reforms, public compulsory insurance has since 2008 been implemented by private insurance companies. The voucher cost of this insurance is treated as general government health expenditure.
n    2009
o    2012
p    2008
q    2014
r    Data are as at 1 January of reporting year.
s    Break in the time series.
t    Users in the last 3 months.
u    Population aged 6 years and over.
v    2005
w    Partial data.
x    Excluding business enterprise.
y    Excluding private non-profit.