a    Projected estimate (medium fertility variant).
b    2015.
c    Data classified according to ISIC Rev. 4.
d    Includes taxes less subsidies on production and imports.
e    Estimate.
f    All urban consumers.
g    2014.
h    Excluding water and waste management.
i    Including the trade with the U.S. Virgin Islands and Puerto Rico but excluding with Guam and American Samoa. Including non-monetary gold imports and exports.
j    2016.
k    Data refers to a 5-year period preceding the reference year.
l    Data as at the end of December.
m    2004.
n    2013.
o    Population aged 3 years and over.
p    Excluding most or all capital expenditures.
q    Including overseas territories.
r    Oil and coal trade statistics include overseas territories.
s    Development Assistance Committee member (OECD)
t    Provisional data.