a    Projected estimate (medium fertility variant).
b    2019
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    2020
f    Estimate.
g    Data refers to a 5-year period preceding the reference year.
h    Data as at the end of December.
i    2018
j    2016
k    Data are as at 1 January of reporting year.
l    Including users of the international network and also those having access only to the Cuban network.
m    Arrivals by air.