Footnotes  
a    For statistical purposes, the data for China do not include those for the Hong Kong Special Administrative Region (Hong Kong SAR), Macao Special Administrative Region (Macao SAR) and Taiwan Province of China.
b    2017
c    Refers to all city districts (excluding Yanqing District) meeting the criteria such as contiguous built-up areas, being the location of the local government, being a Street or Having a Resident Committee.
d    2019
e    2018
f    Including taxes less subsidies on production and imports.
g    Excludes repair of motor vehicles and motorcycles, personal and household goods.
h    Estimate.
i    Index base: 2015=100.
j    2016
k    Data refers to a 5-year period preceding the reference year.
l    Refers to foreign citizens.
m    Data as at the end of December.
n    The 321,500 Vietnamese refugees are well integrated and in practice receive protection from the Government of China.
o    Data revision.
p    Data are as at 1 January of reporting year.
q    Population aged 6 years and over.
r    Data refer to permanent residents.
s    Users in the last 6 months.