제주도(濟州島)의 성별(性別)ㆍ년령별(年齡別) 인구구성(人口構成) = A Population Composition by Age and Sex in Jeju Island

다국어 초록 (Multilingual Abstract)

The purpose of the study is intended to analyze the population composition by age and sex in Jeju Island on the basis of census.
The past population of Jeju Island had shown the following features, compared with that of the whole country.
1）Lower proportion of the group aged 0-14 and 15-59.
2）Higher proportion of the group aged 60 and over.
3）Lower sex ratio.
4）Lower crude birthrate.
It is assumed that the said features were mostly caused by the factors such as the outward-migration of many young men during the Japanese colonial period and the victims of 4.3 incident in 1948.
The population composition of Jeju Island has been changed recently. The following are the major findings drawn from this study.
1）The crude birthrate continued to keep a high level during 1960-70, but has been rapidly decreased from 1970.
2）The proportion of the aged 0-14 has been decreased from 1975. It appears that such a trend would be kept for some times.
3）The proportion of the aged 15-59 has been rapidly increased from 1975. This result suggests that an effective plan for both unemployment and the fertility control be considered.
4）It is another important fact to be mentioned that the proportion of the group aged 60 and over has been decreased continuously. This might mean that the proportion of the old age in Jeju Island would be lower in 1985, compared with that of the whole country.
5）The sex ratio has been continuously increased. This fact might draw that, in the near future, the predominance of females in terms of sex ratio would be disappeared.