Footnotes  
a    2017
b    2018
c    Data classified according to ISIC Rev. 4.
d    Estimate.
e    2016
f    Data refers to a 5-year period preceding the reference year.
g    2015
h    Data as at the end of December.
i    Population aged 16 to 74 years.
j    Users in the last 3 months.
k    2009
l    2004
m    2014
n    Development Assistance Committee member (OECD).