Footnotes  
a    2017
b    Data refers to the urban agglomeration.
c    2019
d    2018
e    Estimate.
f    2016
g    Data refers to a 5-year period preceding the reference year.
h    Including refugees.
i    Data as at the end of December.
j    2006
k    2014
l    2007
m    Data are as at 1 January of reporting year.
n    2009