a    2017
b    Refers to the total population in 76 municipalities of the Metropolitan Area of Mexico City.
c    2018
d    Data classified according to ISIC Rev. 4.
e    Estimate.
f    Calculated by the UN Statistics Division from national indices.
g    2016
h    Including construction.
i    2014
j    Trade data include maquiladoras and exclude goods from customs-bonded warehouses. Total exports include revaluation and exports of silver.
k    Imports FOB.
l    Areas not elsewhere specified.
m    Data refers to a 5-year period preceding the reference year.
n    2015
o    Including refugees.
p    Data as at the end of December.
q    2000
r    Population aged 6 years and over.
s    2004
t    Including nationals residing abroad.
u    Provisional data.