a    2017
b    African Financial Community (CFA) Franc, Bank of Central African States (BEAC).
c    2018
d    Estimate.
e    Brazzaville
f    Provisional data.
g    2015
h    2016
i    Data classified according to ISIC Rev. 3.
j    Country data supplemented with data from the Observatoire Economique et Statistique d’Afrique Subsaharienne (Afristat).
k    Data refers to manufacturing and utilities only.
l    2009
m    Data refers to a 5-year period preceding the reference year.
n    Data as at the end of December.
o    2004
p    2007
q    2011
r    2012
s    2003
t    2013
u    2014
v    Including nationals residing abroad.