a    Projected estimate (medium fertility variant).
b    2017
c    2016
d    Estimate.
e    2015
f    Break in the time series.
g    Data refers to a 5-year period preceding the reference year.
h    Including refugees.
i    Data as at the end of December.
j    Including South Sudan.
k    2004
l    2008
m    2009
n    2014
o    Overestimated or based on overestimated data.
p    Including nationals residing abroad.