a    Projected estimate (medium fertility variant).
b    2015.
c    Including communities under the authority of the Town Council.
d    2016.
e    Estimate.
f    Annual average is weighted mean of monthly data.
g    Series linked to former series.
h    2014.
i    Data classified according to ISIC Rev. 3.
j    Data refers to a 5-year period preceding the reference year.
k    Data as at the end of December.
l    2000.
m    Population aged 16 years and over.
n    Population aged 6 years and over.
o    2013.
p    2004.
q    Package tour only.