Footnotes  
a    Projected estimate (medium fertility variant).
b    2022
c    Refers to the population of Brussels-Capital Region and "communes" of the agglomeration and suburbs.
d    2019
e    2023
f    Data classified according to ISIC Rev. 4.
g    Excludes irrigation canals and landscaping care.
h    Excludes publishing activities. Includes irrigation canals.
i    Includes publishing activities and landscape care. Excludes repair of personal and household goods.
j    Estimate.
k    Calculated by the UN Statistics Division from national indices.
l    Data refers to a 5-year period preceding the reference year.
m    Calculated by the UN Statistics Division.
n    2021
o    Data are as at 1 January of reporting year.
p    Users in the last 3 months.
q    Population aged 16 to 74 years.
r    Break in the time series.
s    Development Assistance Committee member (OECD).