Mikrocensus 1981, 2. quarter: Additional Questions for the Population Census ...

This survey consists of 6 parts: - migration: data on migration, i.e. immigration and emigration of households or individual; this information is important for population...本调查数据集共包含6个部分：—— 迁移（migration）模块：收录家庭或个人的入境移民（immigration）与出境移民（emigration）相关数据；该类信息对于人口具有重要意义。