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EXPLANATION OF TERMINOLOGY, CONTENT AND CALCULATION
METHODOLOGY OF SOME STATISTICAL INDICATORS ON
POPULATION AND LABOUR
POPULATION
Average population
is the number of people on average for an entire period
(usually a solar calendar year), calculated by the following formula:
P
t
= P
0
x e
rt
In which:
- P
t
: Average population of calculated year;
- P
0
: Base year population;
- e: Natural logarithm, e = 2.71828;
- r: Population growth rate between the calculated time as compared to the base
time;
- t: Time duration from base time to calculated time (Number of calculated
years).
Urban population
is the population of the territorial units which is designated
as urban areas by the State (wards, town).
Rural population
is the population of the territorial units which is
designated as rural areas by the State (communes).
Population density
is the average number of people per square kilometer of
the territorial area, calculated by dividing the population (time point or average)
of a certain residential area to the area of that territory. Population density can be
calculated for each province, district, commune, etc. to reflect the population
distribution by geography at a given time.
Population density
(persons/km
2
)
=
Population (persons)
Territorial area (km
2
)
Sex ratio of the population
reflects number of males per 100 females. Sex
ratio of the population is determined by the following formula:
Sex ratio of the
population
=
Total of males
× 100
Total of females
Crude birth rate:
The indicator measures the fertility of the population, is one
of the two components of natural population increase. High or low value of crude
birth rate can affect the size, structure and population growth rate. Crude birth rate
indicates that for every 1000 people, how many live births are in the reference
period.