Map of Survey Regions
The darker shaded regions in this map are the provinces and municipal cities in which the survey has been conducted. They are:
- Beijing
- Chongqing
- Guangxi
- Guizhou
- Heilongjiang
- Henan
- Hubei
- Hunan
- Jiangsu
- Liaoning
- Shaanxi
- Shandong
- Shanghai
- Yunnan
- Zhejiang