|Budget Amount *help
¥2,000,000 (Direct Cost : ¥2,000,000)
Fiscal Year 1992 : ¥200,000 (Direct Cost : ¥200,000)
Fiscal Year 1991 : ¥1,800,000 (Direct Cost : ¥1,800,000)
1.This studies are analysis on social variation of population with Census at each age and both sexes.
2.Analysis areas are all 22 prefectures with 1,591 shi, ku, cho, sons on Tohoku, Chubu and Kanto areas.
3.Analysis years are 1975, 1980, 1985, 1990 on the year of Census research at five year intervals
4.Analysis data are each age (101 ranks on 0 age-100 ages and over) and both sexes from Census data.
5.Social variation of each age on population are estimated by difference from total variation to natural variation of each age on population.
6.Total variation is calculated at five year intervals of two years of Census data, for example to difulent from 20 years population of 1980 Census to 15 years one of 1975 Census.
7.Natural variation is calculated by births and deaths every five years increasing one age at Vital statistics from Ministry of Health and Wefare.
8.In each shi, ku, cho, son, "Type of In-moving" is defined by ratio of divided by populations moving- into and moving-out to be larger than 1.2.
9.And, "Type of Out-moving" is defined by ratio to be smaller than 0.8.
10.So, "Type of Balance" is defined by ratio between to be larger or equal to 0.8 and to be smaller or equal to 1.2.
11.On results of analysis, there are numbers of "Type of In-moving" about ten percents of all shi, ku, cho, sons at 22 prefectures around Tokyo and Nagoya cities.
12.And, there are numbers of "Type of Balance" about five percents of all.
13.So, surplus about eighty five percents of all shi, ku, cho, sons are belong to "Type of Out-moving".