3.3　The population information

The population refers to household registered people covered in the registration area.The data originate from census data, public security or bureaus of statistics.The population information incudes overall population coverage, gender and age composition.The population are divided into groups by age as: 0~1, 1~4, 5~9, 10~14……75~79, 80~84 and 85+ age group.(https://www.daowen.com)