a    Projected estimate (medium fertility variant).
b    2015.
c    2016.
d    Data classified according to ISIC Rev. 4.
e    Estimate.
f    Index base: 2002=100.
g    2014.
h    Data classified according to ISIC Rev. 3.
i    Data refers to a 5-year period preceding the reference year.
j    Refers to foreign citizens.
k    Data as at the end of December.
l    Data revision.
m    Includes inactive subscriptions.
n    Data refers to active subscriptions only.
o    Population aged 15 years and over.
p    2012.
q    2004.
r    Arrivals in hotels only.