a    Projected estimate (medium fertility variant).
b    2019
c    Refers to Muscat governorate.
d    2020
e    Estimate.
f    Areas not elsewhere specified.
g    Data refers to a 5-year period preceding the reference year.
h    Refers to foreign citizens.
i    Including refugees.
j    Data as at the end of December.
k    2018
l    2009
m    2013
n    Data are as at 1 January of reporting year.
o    Population aged 5 years and over.
p    Partial data.