a    Projected estimate (medium fertility variant).
b    2015
c    Refers to the Greater Copenhagen Region, consisting of (parts of) 16 municipalities.
d    2017
e    2016
f    Data classified according to ISIC Rev. 4.
g    Estimate.
h    Calculated by the Statistics Division of the United Nations from national indices.
i    Excluding water and waste management.
j    2014
k    Break in the time series.
l    Undisclosed (Special categories).
m    Data refers to a 5-year period preceding the reference year.
n    Data as at the end of December.
o    Population aged 16 to 74 years.
p    Provisional data.
q    2004
r    Excluding the Faroe Islands and Greenland.
s    Development Assistance Committee member (OECD).