a    2017
b    Data refers to the Governorates of Capital, Hawalli, Al-Farwaniya and Mubarak Al-Kabeer.
c    2019
d    2018
e    Estimate.
f    2016
g    Areas not elsewhere specified.
h    Data refers to a 5-year period preceding the reference year.
i    Including refugees.
j    Refers to foreign citizens.
k    Data as at the end of December.
l    2006
m    2012
n    Data are as at 1 January of reporting year.
o    Partial data.
p    Government only.
q    Excluding business enterprise.
r    Excluding private non-profit.
s    Break in the time series.
t    The data for crude oil production include 50 per cent of the output of the Neutral Zone.