a    2017
b    Refers to the urban population of Santiago Metropolitan Area Region.
c    2018
d    Data classified according to ISIC Rev. 4.
e    Estimate.
f    Index base: 2009=100.
g    Index base: 2013=100.
h    2016
i    Data refers to a 5-year period preceding the reference year.
j    2015
k    Data as at the end of December.
l    2009
m    Population aged 5 years and over.
n    Population aged 15 years and over.
o    Break in the time series.
p    Provisional data.
q    2004
r    2014
s    Including nationals residing abroad.