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 Taiwan province, Chinese compatriots in Hong Kong and Macao and overseas Chinese. |
Urban Population and Rural Population are classified, in general, with the permanent population. |
Urban Population refers to the population living in areas under the jurisdiction of cities or towns. |
Rural Population refers to the population of counties excluding those living in towns. |
City refers to cities established with the approval of the central government. |
Town refers to towns established with the approval of the governments of province, autonomous region, or municipality directly under the central government. Prior to 1963, a town was defined as an area
with more than 2000 permanent residents, of which 50% or more were non-agricultural
population. A revision of the definition was made in
1964. By the new definition, a town was an area with more than 3000 permanent
residents, of which 70% or more were nonagricultural population or an area with more than 2500, but lower
than 3000 permanent residents, of which 85% or more were nonagricultural
population. Further adjustment was made in 1984: a town is defined as: (1) an area
being
the
location of countylevel government agency, or (2) a township with a total population less than 20000, where
the nonagricultural population of the location of a township government
exceeds 2000; or (3) a township with a total population more than 20000,
where the proportion of the nonagricultural population to the total population of the location of
a township government is greater than 10%; or (4) a remote area, mountainous area, small-sized mining area, small harbor, tourism area, or border area with nonagricultural population less than 2000. |
Birth Rate or (Crude Birth Rate) refers to the ratio of the number of births to the average population during a certain period of time(usually a year), which is often expressed in . The following formula is used: |
Birth
Rate=Number
of Births / Average Number of Population1000 |
Number
of
births refers to live births,i.e. the births when babies had showed any vital phenomena regardless of the length of pregnancy. |
Annual
Average Number of 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 for with the midyear population. |
Death Rate(or Crude Death Rate) refers to the ratio of the number of deaths to the average population(or midyear population)during a certain period of time(usually a year), which is often expressed in . The following formula is used: |
Death Rate=Number of Deaths /
Annual Average Number of Population1000 |
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 midyear population)of the same period, which is often expressed in . The following formulas are applied: |
Natural
Growth of Population=(Number of Births-Number of Deaths) /
Average Number of Population1000 |
Natural
Growth Rate of Population=Birth Rate-Death Rate |
Employed Population refers to population aged 15 or over engaging in social labour which generates income. |
Unemployed Population refers to population aged 15 or over not engaging in any social labour which generates income, including students enrolled in schools, house wives, students waiting for entering schools with higher level,
urban
job
seekers,
retirees,
job
quitters,
disabled,
etc. |
Total Dependency Ratio refers to the ratio of number of dependents to the total
population aged 15-64,the number of dependents being population aged 0-14 and population
aged 65 and over. The total dependency ratio is calculated as follows: |
Total
Dependency Ratio=Number of dependents/Population aged 15-64100% |
The Aged Dependency Ratio
refers to the ratio of the number of the aged population to the total
population aged 15-64,the aged being population aged 65 and over. The aged dependency
ratio is calculated as follows: |
The Aged
Dependency Ratio=Number of the aged population/ Population aged 15-64*100% |
The Juvenile and Children
Dependency Ratio refers to the ratio of the number of the juvenile and
children to the total population aged 15-64,the juvenile and
children being population aged 0-14. The juvenile and children dependency
ratio is calculated as follows: |
The
Juvenile and Children Dependency Ratio=Number of juvenile and children/ Population aged 15-64 *100% |