Geographical distribution of sampled districts and counties across provinces/municipalities
| Province/municipality | Number of sample districts/counties | Province/municipality | Number of sample districts/counties |
|---|---|---|---|
| Henan | 3 | Zhejiang | 1 |
| 3 | 1 | ||
| Hebei | 2 | Hubei | 1 |
| 2 | 1 | ||
| Anhui | 2 | Guangxi | 1 |
| 2 | 1 | ||
| Jiangxi | 2 | Chongqing | 1 |
| 2 | 1 | ||
| Shandong | 2 | Guizhou | 1 |
| 2 | 1 | ||
| Hunan | 2 | Yunnan | 1 |
| 2 | 1 | ||
| Guangdong | 2 | Shaanxi | 1 |
| 2 | 1 | ||
| Sichuan | 2 | Gansu | 1 |
| 2 | 1 | ||
| Shanxi | 1 | Jiangsu | 1 |
| 1 | 1 | ||
| Liaoning | 1 | Shanghai | 1 |
| 1 | 1 | ||
| Jilin | 1 | ||
| 1 |
| Province/municipality | Number of sample districts/counties | Province/municipality | Number of sample districts/counties |
|---|---|---|---|
| Henan | 3 | Zhejiang | 1 |
| 3 | 1 | ||
| Hebei | 2 | Hubei | 1 |
| 2 | 1 | ||
| Anhui | 2 | Guangxi | 1 |
| 2 | 1 | ||
| Jiangxi | 2 | Chongqing | 1 |
| 2 | 1 | ||
| Shandong | 2 | Guizhou | 1 |
| 2 | 1 | ||
| Hunan | 2 | Yunnan | 1 |
| 2 | 1 | ||
| Guangdong | 2 | Shaanxi | 1 |
| 2 | 1 | ||
| Sichuan | 2 | Gansu | 1 |
| 2 | 1 | ||
| Shanxi | 1 | Jiangsu | 1 |
| 1 | 1 | ||
| Liaoning | 1 | Shanghai | 1 |
| 1 | 1 | ||
| Jilin | 1 | ||
| 1 |
Sharing content requires targeting cookies to be enabled. Please update your cookie preferences to use this feature.