a    Projected estimate (medium fertility variant).
b    2015
c    Refers to urban population in the city districts.
d    2017
e    2016
f    Data classified according to ISIC Rev. 4.
g    At producers' prices.
h    Estimate.
i    2014
j    Data refers to a 5-year period preceding the reference year.
k    Including refugees.
l    Refers to foreign citizens.
m    Data as at the end of December.
n    Data revision.
o    2013
p    2011
q    2002
r    2004