a    Projected estimate (medium fertility variant).
b    2015.
c    Refers to the 'Regi´o Integrada de Desenvolvimento do Distrito Federal e Entorno'.
d    2016.
e    Data classified according to ISIC Rev. 4.
f    Estimate.
g    2014.
h    Break in the time series.
i    Data refers to a 5-year period preceding the reference year.
j    Data as at the end of December.
k    2013.
l    2009.
m    Population aged 10 years and over.
n    Users in the last 3 months.
o    2004.