a    2017
b    Refers to "t├Ątort" (according to the administrative divisions of 2005).
c    2018
d    Data classified according to ISIC Rev. 4.
e    Estimate.
f    2016
g    Excluding water and waste management.
h    2014
i    Data refers to a 5-year period preceding the reference year.
j    2015
k    Data as at the end of December.
l    Population aged 16 to 74 years.
m    Population aged 16 to 75 years.
n    Break in the time series.
o    Provisional data.
p    2004
q    2003
r    Development Assistance Committee member (OECD).