a    2017
b    2018
c    2019
d    Data classified according to ISIC Rev. 4.
e    Excludes computer and related activities and radio/TV activities.
f    Excludes repair of personal and household goods.
g    Estimate.
h    2016
i    Data refers to a 5-year period preceding the reference year.
j    Including refugees.
k    Refers to foreign citizens.
l    2008
m    2006
n    Data are as at 1 January of reporting year.
o    At least once a month.
p    Population aged 18 years and over.
q    Partial data.
r    2009
s    Excluding business enterprise.
t    Excluding private non-profit.
u    Break in the time series.