a    Projected estimate (medium fertility variant).
b    Including Zanzibar.
c    2015.
d    2014.
e    2016.
f    Tanzania mainland only.
g    Data classified according to ISIC Rev. 4.
h    Estimate.
i    Excluding Zanzibar.
j    Series linked to former series.
k    Break in the time series.
l    Data refers to a 5-year period preceding the reference year.
m    Including refugees.
n    Data as at the end of December.
o    2002.
p    2006.
q    2012.
r    2013.
s    Partial data.
t    Excluding business enterprise.
u    2004.