Footnotes  
a    Projected estimate (medium fertility variant).
b    For statistical purposes, the data for United States of America do not include this area.
c    2022
d    2018
e    Estimate.
f    Calculated by the UN Statistics Division from national indices.
g    2023
h    2019
i    Data refers to a 5-year period preceding the reference year.
j    Calculated by the UN Statistics Division.
k    2011
l    2017
m    2021
n    Air and sea arrivals.