a    2017
b    Refers to the "RegiĆ£o Integrada de Desenvolvimento do Distrito Federal e Entorno".
c    2018
d    Data classified according to ISIC Rev. 4.
e    Estimate.
f    Calculated by the UN Statistics Division from national indices.
g    2016
h    2014
i    Data refers to a 5-year period preceding the reference year.
j    2015
k    Data as at the end of December.
l    2009
m    Users in the last 3 months.
n    Population aged 10 years and over.
o    2004
p    Including nationals residing abroad.