a    Projected estimate (medium fertility variant).
b    2015.
c    Refers to the Governorate of Grand Algiers.
d    2016.
e    Estimate.
f    2014.
g    Data classified according to ISIC Rev. 3.
h    Break in the time series.
i    Data refers to a 5-year period preceding the reference year.
j    Including refugees.
k    Refers to foreign citizens.
l    Data as at the end of December.
m    2007.
n    2008.
o    2011.
p    Partial data.
q    2004.
r    Including nationals residing abroad.