a    Projected estimate (medium fertility variant).
b    2015
c    2017
d    2016
e    Data classified according to ISIC Rev. 4.
f    Estimate.
g    Calculated by the Statistics Division of the United Nations from national indices.
h    Data refers to a 5-year period preceding the reference year.
i    Including refugees.
j    Data as at the end of December.
k    Data revision.
l    2004
m    2013
n    2006
o    2011
p    S&T budget instead of R&D expenditure.
q    Overestimated or based on overestimated data.
r    2002
s    Break in the time series.
t    Excluding business enterprise.
u    2014
v    The data correspond only to 12 border posts.
w    The data of all the border posts of the country are used.