a    2017
b    2018
c    Data classified according to ISIC Rev. 4.
d    Estimate.
e    2016
f    Excluding water and waste management.
g    2014
h    Data refers to a 5-year period preceding the reference year.
i    2015
j    Data as at the end of December.
k    Figure includes persons under UNHCR’s statelessness mandate and covered by two separate Latvian laws.
l    2004
m    Population aged 16 to 74 years.
n    Users in the last 3 months.
o    Non-resident departures. Survey of persons crossing the state border.