a    Projected estimate (medium fertility variant).
b    Including ´land Islands.
c    2015.
d    2016.
e    Data classified according to ISIC Rev. 4.
f    Estimate.
g    Series linked to former series.
h    2014.
i    Break in the time series.
j    Data refers to a 5-year period preceding the reference year.
k    Data as at the end of December.
l    2002.
m    2013.
n    Includes data-only subscriptions.
o    Excludes data-only subscriptions.
p    Population aged 16 to 74 years.
q    2004.
r    Development Assistance Committee member (OECD)
s    Provisional data.