a    2017
b    African Financial Community (CFA) Franc, Bank of Central African States (BEAC).
c    2019
d    2018
e    Estimate.
f    Brazzaville
g    2016
h    Data refers to a 5-year period preceding the reference year.
i    Data as at the end of December.
j    2011
k    2012
l    2009
m    2013
n    Data are as at 1 January of reporting year.
o    Including nationals residing abroad.