a    2017
b    Consists of the population of Hong Kong Island, New Kowloon the new towns in New Territories and the marine areas.
c    2019
d    2018
e    Excluding hunting and forestry.
f    Excluding mining and quarrying.
g    Data classified according to ISIC Rev. 4.
h    Includes waste management.
i    Excludes repair of motor vehicles and motorcycles, personal and household goods.
j    Excluding waste management.
k    Estimate.
l    2016
m    Data refers to a 5-year period preceding the reference year.
n    Data as at the end of December.
o    Population aged 10 years and over.