a    Projected estimate (medium fertility variant).
b    2015.
c    2014.
d    2016.
e    Data classified according to ISIC Rev. 4.
f    At producers' prices.
g    Estimate.
h    Break in the time series.
i    Trade statistics exclude certain oil and chemical products.
j    Areas not elsewhere specified.
k    Data refers to a 5-year period preceding the reference year.
l    Data as at the end of December.
m    2008.
n    2000.
o    2012.
p    2004.