a    2017
b    Refers to the municipality of Phnom Penh including suburban areas.
c    2019
d    2018
e    Estimate.
f    Phnom Penh
g    2016
h    Data refers to a 5-year period preceding the reference year.
i    Data as at the end of December.
j    Data refer to fiscal years beginning 1 July.
k    2012 data are based on a health accounts study based on SHA2011. Numbers were converted to SHA 1.0 format for comparability.
l    2014
m    2008
n    2011
o    Data are as at 1 January of reporting year.
p    Break in the time series.
q    Arrivals by all means of transport.