Footnotes  
a    2017
b    2018
c    Estimate.
d    2013
e    2016
f    2012
g    Data refers to a 5-year period preceding the reference year.
h    2015
i    Data as at the end of December.
j    Data revision.
k    2009
l    2002
m    2008
n    2004
o    2003
p    2014
q    Arrivals by air.