Footnotes  
a    2017
b    2018
c    Data classified according to ISIC Rev. 4.
d    Estimate.
e    2016
f    Data classified according to ISIC Rev. 3.
g    2008
h    Data refers to a 5-year period preceding the reference year.
i    2015
j    Data as at the end of December.
k    Data revision.
l    2014
m    2009
n    2000
o    Break in the time series.
p    2004
q    Population aged 16 to 74 years.