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
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:
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:
Natural Growth Rate of Population = Birth Rate-Death Rate