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Since August 2000, the "resident population" approach has been adopted in place of the "extended de facto" approach for compiling Hong Kong population figures. Revised population figures backdated to 1996 have been compiled. The population estimate compiled under the "resident population" approach is referred to as the "Hong Kong Resident Population". The "Hong Kong Resident Population" comprises "Usual Residents" and "Mobile Residents".

Under the "resident population" approach, visitors are not included in the Hong Kong Population.

For details of the method of compiling population estimates of Hong Kong, please see the feature article entitled "Compiling Population Estimates of Hong Kong" published in the February 2002 issue of the Hong Kong Monthly Digest of Statistics.

Glossary of Terms

Term
Definition
"De facto" concept
Under a "de facto" concept, the population includes all persons who are in the country/territory at the reference time-point. That is, this method is equivalent to taking a "snapshot" of the population at a reference time-point.
"De jure" concept
Under a "de jure" concept, all persons who usually live in a country/territory at a particular reference time-point (usually taken as the middle of a year) will be counted as the population of the country/territory.
Child dependency ratio
Child dependency ratio refers to the number of persons aged under 15 per 1 000 persons aged between 15 and 64.
Crude birth rate
Crude birth rate refers to the number of live births in a given year per 1 000 mid-year population of that year.
Crude death rate
Crude death rate refers to the number of deaths in a given year per 1 000 mid-year population of that year.
Crude marriage rate
Crude marriage rate refers to the number of marriages registered in a given year per 1 000 mid-year population of that year.
Death
A death refers to the permanent disappearance of all evidence of life after live birth has taken place.
Domestic household
A domestic household consists of a group of persons who live together and make common provision for essentials for living. These persons need not be related. If a person makes provision for essentials for living without sharing with other persons, he/she is also regarded as a household. In this case, the household is a one-person household. (In figures compiled from the General Household Survey for the reference period starting from Q1 2001 and the 2006 Population By-census, households comprising of Mobile Residents only are not included as domestic households.)
Elderly dependency ratio
Elderly dependency ratio refers to the number of persons aged 65 and over per 1 000 persons aged between 15 and 64.
Expectation of life at birth
Expectation of life at birth refers to the number of years of life that a person born in a given year is expected to live if he/she were subjected to the prevalent mortality conditions as reflected by the set of age-sex specific mortality rates for that year.
Extended "de facto" approach
Under the "extended de facto" approach, the Hong Kong Population covers all persons who are in Hong Kong at the reference time point including Hong Kong Permanent Residents and Hong Kong Non-permanent Residents as well as visitors. "Extended" relates to the fact that for a Hong Kong Permanent Resident, he/she will still be counted as part of the Hong Kong Population if, at the reference time-point, he/she is not in Hong Kong but temporarily in the mainland of China or Macao.
Live births
A live birth refers to the complete expulsion or extraction from its mother of a product of conception which after such separation breathes or shows other evidence of life.
Median age
Median age is an indicator of the average age such that 50% of the total number of persons are above that age and the other 50% are below it.
Median age at first marriage
Median age at first marriage is an indicator of the average age of persons at their first marriage such that 50% of these persons are above this age while the other 50% are below it.
Median Mortgage Payment and Loan Repayment to Income Ratio
It refers to the average percentage of monthly household income paid on monthly mortgage payment and loan repayment so calculated that 50% of domestic households owning the quarters they occupy with mortgage or loan paid more than that percentage and the other 50% paid less than that. Households with zero income and/or zero mortgage payment and loan repayment by household members (i.e. with mortgage payment and loan repayment by non-household members only) are excluded in the calculation.
Median Rent to Income Ratio
It refers to the average percentage of monthly household income paid on monthly household rent so calculated that 50% of domestic households renting the accommodation they occupy paid more than that percentage and the other 50% paid less than that. Households with zero income and/or zero rent are excluded in the calculation.
Mobile Residents
"Mobile Residents" are Hong Kong Permanent Residents who have stayed in Hong Kong for at least 1 month but less than 3 months during the 6 months before or for at least 1 month but less than 3 months during the 6 months after the reference moment, regardless of whether they were in Hong Kong or not at the reference moment.
Mortgage Payment and Loan Repayment to Income Ratio
It refers to the percentage of monthly household income paid on monthly mortgage payment and loan repayment of a domestic household owning the quarters it occupies with mortgage or loan. Households with zero income and/or zero mortgage payment and loan repayment by household members (i.e. with mortgage payment and loan repayment by non-household members only) are excluded in the calculation.
Natural Increase
Natural increase refers to the balance of live births over deaths in a year.
Net movement
It is the number of inflow to a country/territory less the number of outflow during a specified period.
Overall dependency ratio
Overall dependency ratio refers to the number of persons aged under 15 and those aged 65 and over per 1 000 persons aged between 15 and 64.
Population by-census
Population by-census is a statistical project which collects basic population information from a sample of persons in the population of a country/territory. A by-census is usually conducted in between two censuses to update the information obtained from the last Population Census.
Population census
Population census refers to a large-scale statistical project which collects basic population information from all persons in the population of a country/territory. Usually a population census is conducted every ten years.
Population growth rate
Population growth rate refers to the population change over a period as a percentage of the population at the beginning of the period.
Registered marriage
A registered marriage is defined as a voluntary union of life of one man and one woman to the exclusion of all others which has been contracted in accordance with the Marriage Ordinance. Re-registrations of couples who had either customarily married in Hong Kong before the Marriage Reform Ordinance was enacted in October 1971 or had married outside Hong Kong, are also covered in the statistics. Marriage statistics are restricted to registered marriages only.
Rent to Income Ratio
It refers to the percentage of monthly household income paid on monthly household rent of a domestic household renting the accommodation it occupies. All zero income households and/or zero rent households are excluded in the calculation.
Resident population
The practical definition of "resident population" adopted varies from place to place, as the residency and mobility patterns unique to each place need to be given adequate consideration. In the case of Hong Kong, the "resident population" of Hong Kong (which is referred to as the "Hong Kong Resident Population") is defined to include "Usual Residents" and "Mobile Residents".
Sex ratio
Sex ratio refers to the ratio of the number of males per 1 000 females.
Total fertility rate
Total fertility rate refers to the average number of children that would be born alive to 1 000 women during their lifetime if they were to pass through their childbearing ages 15-49 experiencing the age specific fertility rates prevailing in a given year
Usual Residents
"Usual Residents" refer to two categories of people : (a) Hong Kong Permanent Residents who have stayed in Hong Kong for at least 3 months during the 6 months before or for at least 3 months during the 6 months after the reference moment, regardless of whether they were in Hong Kong or not at the reference moment; and (b) Hong Kong Non-permanent Residents who were in Hong Kong at the reference moment.