a    2017
b    2018
c    Estimate.
d    2016
e    Data classified according to ISIC Rev. 3.
f    2014
g    Areas not elsewhere specified.
h    Data refers to a 5-year period preceding the reference year.
i    2015
j    Data as at the end of December.
k    From 2015 the data is adjusted by WHO in accordance with UN General Assembly Resolution A/RES/68/262.
l    2008
m    2009
n    Break in the time series.
o    Include victims of attempted homicide.
p    Population aged 16 to 74 years.
q    Population aged 15 to 74 years.
r    Users in the last 3 months.
s    2004
t    Some of the debt relief reported may correspond to the credits. Statistics currently published on ODA by Russia and the estimates from the previous Chairman's reports should not be used at the same time.