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