a    Projected estimate (medium fertility variant).
b    2015
c    2017
d    2016
e    Estimate.
f    Data classified according to ISIC Rev. 3.
g    2008
h    Break in the time series.
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    2012
n    2009
o    2013
p    Partial data.
q    Government only.
r    2014
s    2004
t    Arrivals of non-resident tourists by air.