a    Projected estimate (medium fertility variant).
b    2015.
c    Refers to Altindag, Cankaya, Etimesgut, Golbasi, Ke´ioren, Mamak, Sincan and Yenimahalle.
d    2016.
e    Data classified according to ISIC Rev. 4.
f    Estimate.
g    Break in the time series.
h    Series linked to former series.
i    2014.
j    Excluding water and waste management.
k    Data refers to a 5-year period preceding the reference year.
l    Including refugees.
m    Data as at the end of December.
n    2004.
o    2006.
p    2013.
q    2012.
r    Users in the last 12 months.
s    Population aged 16 to 74 years.
t    Turkish citizens resident abroad are included.
u    Provisional data.