* 3 Cities are listed in descending order according to population from left to right.
* All percentages may not total 100% due to rounding.
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For those interested in learning more about daily life in China, please also check out this article.

What is Real Life in China? Daily Habits and Current Trends Marketers Should Know
・Urban Housing Conditions: Surprisingly Not That Spacious? Floor Plans and Features
・Ways to Maximize Space Utilization
・Refrigerators in the Living Room? And Entranceways: Different Approaches Compared to Japan
・Chinese Households Focusing on Indoor Air Quality
etc.

Reference
Chongqing:Chongqing Municipal Bureau of Statistics, "Chongqing Statistical Yearbook 2021"
3-6 Basic Statistics on the 7th National Population Census, 3-8 Age composition and Dependency Ratio of Population（1982-2020）
"重庆统计年鉴 2021", 3-6 第七次人口普查基本情况, 3-8 人口年龄结构和抚养比（1982-2020年）
Retrieved Dec 23, 2022, from here

Shanhai: Shanghai Municipal Bureau of Statistics, "Shanhai Statistical Yearbook 2020" 3-1 Population by age and sex in the whole city
"2020年上海市人口普查年鉴", 3-1 全市分年龄、性别的人口
Retrieved Dec 24, 2022, from here

Beijing: Beijing Municipal Bureau of Statistics, Survey Office in Beijing, "Beijing Statistical Yearbook 2021"
3-6 Permanent population by age composition（2020） 
Retrieved Dec 23, 2022, from here