a    Projected estimate (medium fertility variant).
b    2019
c    Refers to Grand Tunis.
d    2020
e    At factor cost.
f    Estimate.
g    Break in the time series.
h    Data refers to a 5-year period preceding the reference year.
i    Including refugees.
j    Refers to foreign citizens.
k    Data as at the end of December.
l    2018
m    2017
n    2011
o    2016
p    2012
q    Data are as at 1 January of reporting year.
r    Including nationals residing abroad.