a    Including Agalega, Rodrigues and Saint Brandon.
b    Excluding the islands of Saint Brandon and Agalega.
c    2017
d    2018
e    Data classified according to ISIC Rev. 4.
f    Estimate.
g    Calculated by the UN Statistics Division from national indices.
h    2016
i    Data classified according to ISIC Rev. 3.
j    2011
k    Data refers to a 5-year period preceding the reference year.
l    2015
m    Refers to foreign citizens.
n    2004
o    Population aged 5 years and over.
p    Overestimated or based on overestimated data.
q    Based on R&D budget instead of R&D expenditure.
r    Excluding business enterprise.
s    Break in the time series.
t    2012
u    2014