a    Projected estimate (medium fertility variant).
b    2015
c    Break in the time series.
d    2016
e    2010
f    Population aged 16 years and over.
g    Data classified according to ISIC Rev. 2.
h    2000
i    2003
j    Estimate.
k    2017
l    Areas not elsewhere specified.
m    Data refers to a 5-year period preceding the reference year.
n    2013
o    2009
p    2012
q    Refers to the island of Saipan.
r    Estimates should be viewed with caution as these are derived from scarce data.
s    2004