Number of historical and current unique addresses in the CHI and number of people living at a CHI address on 30th April 2020.

Number of historical and current unique addresses in the CHI and number of people living at a CHI address on 30th April 2020.该数据集包含两项统计内容：一是CHI内历史与当前的唯一地址总量；二是2020年4月30日当日居住于CHI地址的人口数目。