a    Projected estimate (medium fertility variant).
b    2015
c    2017
d    2016
e    Estimate.
f    Calculated by the Statistics Division of the United Nations from national indices.
g    Data classified according to ISIC Rev. 3.
h    2014
i    Break in the time series.
j    Data refers to a 5-year period preceding the reference year.
k    Data as at the end of December.
l    2013
m    2011
n    Excluding private non-profit.
o    Excluding business enterprise.
p    2004
q    2001