Explanatory Notes on Main Statistical Indicators
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
Usual Resident Population
refers to the population that actually
reside in a place, usually longer than half a year.
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:
Birth Rate��(Number of Births/Average Number of Population)��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:
Death Rate��(Number of Deaths/Annual Average Number of Population)��1000��
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:
Natural Growth Rate of Population��(Number of Births-Number
of Deaths)/Average Number
of Population��1000��
Natural Growth Rate of Population��Birth Rate��Death Rate