a    Projected estimate (medium fertility variant).
b    2015.
c    2016.
d    Data classified according to ISIC Rev. 4.
e    Estimate.
f    2014.
g    Excluding water and waste management.
h    Data refers to a 5-year period preceding the reference year.
i    Including refugees.
j    Data as at the end of December.
k    Population aged 16 to 74 years.
l    2004.
m    New series.
n    Development Assistance Committee member (OECD)
o    Provisional data.