a    Projected estimate (medium fertility variant).
b    2015
c    The national currency of Cuba is the Cuban Peso (CUP). The convertible peso (CUC) is used by foreigners and tourists in Cuba.
d    UN operational exchange rate.
e    2017
f    2016
g    Estimate.
h    Data refers to a 5-year period preceding the reference year.
i    Data as at the end of December.
j    2014
k    Including users of the international network and also those having access only to the Cuban network.
l    2004
m    Arrivals by air.
n    2013