a    Projected estimate (medium fertility variant).
b    Including Svalbard and Jan Mayen Islands.
c    2019
d    2020
e    Excludes irrigation canals and landscaping care.
f    Excludes publishing activities.
g    Includes irrigation canals.
h    Excludes repair of personal and household goods.
i    Estimate.
j    Data refers to a 5-year period preceding the reference year.
k    Data as at the end of December.
l    2018
m    2017
n    Data are as at 1 January of reporting year.
o    Population aged 16 to 74 years.
p    Users in the last 3 months.
q    Provisional data.
r    Arrivals of non-resident tourists at national borders.
s    Non-resident tourists staying in all types of accommodation establishments.
t    Development Assistance Committee member (OECD).