Footnotes  
a    Projected estimate (medium fertility variant).
b    2022
c    2018
d    2023
e    Estimate.
f    Bujumbura
g    2019
h    Data refers to a 5-year period preceding the reference year.
i    Calculated by the UN Statistics Division.
j    Including refugees.
k    Data based on calendar year (January 1 to December 31).
l    2021
m    2016
n    Data are as at 1 January of reporting year.
o    Partial data.
p    2012
q    Break in the time series.
r    Including nationals residing abroad.
s    2017