a    Projected estimate (medium fertility variant).
b    2015.
c    2014.
d    2016.
e    Data classified according to ISIC Rev. 4.
f    Estimate.
g    Series linked to former series.
h    Bunkers, ship stores.
i    Data refers to a 5-year period preceding the reference year.
j    Data as at the end of December.
k    2004.
l    2013.
m    Population aged 16 to 74 years.
n    Provisional data.
o    Departures by air and by sea.