a    2017
b    De jure population.
c    2015
d    2018
e    2019
f    Data classified according to ISIC Rev. 2.
g    Population aged 16 years and over.
h    2005
i    Population aged 15 to 74 years.
j    Break in the time series.
k    Excluding the institutional population.
l    2013
m    2016
n    Estimate.
o    2011
p    Data refers to a 5-year period preceding the reference year.
q    2008
r    Data refers to a 2-year period up to and including the reference year.