a    Projected estimate (medium fertility variant).
b    2015.
c    2016.
d    Estimate.
e    Index base: 1999=100.
f    Break in the time series.
g    Series linked to former series.
h    2014.
i    Data refers to a 5-year period preceding the reference year.
j    Including refugees.
k    Data as at the end of December.
l    2003.
m    2002.
n    2012.
o    Includes inactive subscriptions.
p    2004.
q    Including nationals residing abroad.