a    2017
b    Refers to the municipality.
c    2018
d    Estimate.
e    Index base: 2014/2015=100.
f    2016
g    Areas not elsewhere specified.
h    Data refers to a 5-year period preceding the reference year.
i    2015
j    Including refugees.
k    Data as at the end of December.
l    Data refer to fiscal years ending 15 July.
m    2004
n    2000
o    Based on R&D budget instead of R&D expenditure.
p    Partial data.
q    2014
r    Including arrivals from India.