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persons at each of the certain ages who will be dead before the following age;
those persons who have reached a certain age will have what probability of
survival and death; how long is the life expectancy in the future.

Rate of literate population aged 15 and over reflects the ability of
reading and writing of the population, serves to assess the development level
of a country, region or locality.

This indicator is calculated as the rate between the number of persons
aged 15 years and over at specific time who are literate (able to read, write
and understand a simple sentence in the national language, ethnic or foreign
language) and the total population aged 15 years and over at that time.
Literate population
Rate of literate population = aged 15 years and over × 100
aged 15 years and over (%) Total population
aged 15 years and over

Number of marriages: Marriage means a marriage between a man
and a woman according to the provisions of the Marriage and Family Law
regarding conditions of marriage and marriage registration.

Men and women getting married must comply with the following
conditions:
a) Man is from 20 years of age or older, woman is from 18 years old
or older;

b) The marriage is voluntarily decided by men and women;
c) Do not lose civil act capacity;

d) Marriage does not fall into one of the circumstances where marriage
is prohibited under the Law on Marriage and Family.
Singulate mean age at marriage (SMAM): Singulate mean age at
marriage of the population is the average number of years of single person
in their whole life, if this generation has proportion of single age as the
proportion of single person collected at the survey time point.
In order to have an overall view on the age of starting a married life of
the population, when calculating the singulate mean age at marriage, the
statistical agency not only identifies married persons who are married as
stipulated by the Law on Marriage and Family but also identifies married
persons who satisfy conditions as stipulated by the Law on Marriage and
Family but have not been certificated; those who are married but do not

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