a    Projected estimate (medium fertility variant).
b    2015.
c    2016.
d    Estimate.
e    2014.
f    Data classified according to ISIC Rev. 3.
g    Country data supplemented with data from the Observatoire Economique et Statistique d´Afrique Subsaharienne (Afristat).
h    Data refers to manufacturing and utilities only.
i    2012.
j    Data refers to a 5-year period preceding the reference year.
k    Data as at the end of December.
l    Data revision.
m    2013.
n    2009.
o    Data as at the end of September.
p    2004.