a    Including Svalbard and Jan Mayen Islands.
b    Projected estimate (medium fertility variant).
c    2015.
d    2016.
e    Data classified according to ISIC Rev. 4.
f    Estimate.
g    2014.
h    Excluding water and waste management.
i    Data refers to a 5-year period preceding the reference year.
j    Data as at the end of December.
k    2013.
l    Data as at the end of June.
m    Population aged 16 to 74 years.
n    2004.
o    Arrivals of non-resident tourists at national borders.
p    Non-resident tourists staying in all types of accommodation establishments.
q    Development Assistance Committee member (OECD)
r    Provisional data.