a    Projected estimate (medium fertility variant).
b    2015
c    2017
d    2016
e    Estimate.
f    Areas not elsewhere specified.
g    Data refers to a 5-year period preceding the reference year.
h    Including refugees.
i    Refers to foreign citizens.
j    Data as at the end of December.
k    2014
l    2004
m    2007
n    Excluding victims of terrorist attacks.
o    2013
p    2000
q    R&D budget instead of R&D expenditure or based on R&D budget.
r    2001