Total Population refers to the total
number of people alive at a certain point of time within a given area.
The annual statistics on total population is taken at midnight, the 3lst
of December, not including residents in
Urban Population and Rural Population Urban population refers
to all people residing in cities and towns, while rural population refers to
population other than urban population.
Birth Rate (or Crude Birth Rate) refers to the ratio of
the number of births to the average population (or mid-period population)
during a certain period of time (usually a year), expressed in ‰. Birth rate in
the chapter refers to annual birth rate. The following formula is used:
×1000‰
Number of births in the formula refers to live births, i.e. when a baby
has breathed or showed any vital phenomena regardless of the length of
pregnancy.
Annual average population is the average of the number of population at
the beginning of the year and that at the end of the year. Sometimes it is
substituted by the mid-year population.
Death Rate (or Crude Death Rate) refers to the ratio of the
number of deaths to the average population (or mid-period population) during a
certain period of time (usually a year), expressed in ‰. Death rate in the
chapter refers to annual death rate. The following formula is used:
Natural Growth Rate of Population refers to the ratio of
natural increase in population (number of births minus number of deaths) in a
certain period of time (usually a year) to the average population (or
mid-period population) of the same period, expressed in ‰. The following
formula is applied:
×1000‰
Natural Growth Rate of Population = Birth Rate-Death Rate
Gross Dependency Ratio also called gross dependency
coefficient, refers to the ratio of non-working-age population to the
working-age population, express in %. Describing in general the number of
non-working-age population that every 100 people at working ages will take care
of, this indicator reflects the basic relation between population and economic
development from the demographic perspective. The gross dependency ratio is
calculated with the following formula:
Where: GDR is the gross dependency ratio,
P0-14 is the population of
children aged 0-14,
P65+ is the elderly
population aged 65 and over, and
P15-64 is the working-age population aged 15-64.
Old Dependency Ratio also called old
dependency coefficient, refers to the ratio of the elderly population to the
working-age population, express in %. It describes the number of the elderly
population that every 100 people at working ages will take care of. Old
dependency ratio is one of the indicators reflecting the social implication of
population aging from the economic perspective. The old dependency ratio is
calculated with the following formula:
Where: ODR is the old dependency ratio,
P65+ is the elderly
population aged 65 and over, and
P15-64 is the working-age population aged 15-64.
Children Dependency Ratio also called children
dependency coefficient, refers to the ratio of the children population to the
working-age population, express in %. It describes the number of children
population that every 100 people at working ages will take care of. The
children dependency ratio is calculated with the following formula:
Where: CDR is the children dependency ratio,
P0-14 is the children
population aged 0-14, and
P15-64 is the working-age population aged 15-64.