a    Projected estimate (medium fertility variant).
b    2015.
c    2016.
d    Estimate.
e    Break in the time series.
f    2014.
g    Data classified according to ISIC Rev. 3.
h    2008.
i    2013.
j    Data refers to a 5-year period preceding the reference year.
k    Refers to foreign citizens.
l    Data as at the end of December.
m    Data revision.
n    2012.
o    2009.
p    Partial data.
q    Government only.
r    2004.
s    Arrivals of non-resident tourists by air.