| 2000 | 2016 | Mean |
| 2000 | 2016 | Mean |
Beijing | 10.00 | 11.30 | 9.96 | Henan | 1.11 | 3.33 | 1.89 |
Tianjin | 3.13 | 6.96 | 4.76 | Hubei | 0.76 | 3.62 | 2.14 |
Hebei | 0.00 | 4.61 | 1.82 | Hunan | 0.13 | 2.58 | 1.27 |
Shanxi | 4.04 | 6.33 | 3.26 | Guangdong | 3.61 | 5.58 | 3.88 |
Inner Mongolia | 1.27 | 2.76 | 1.11 | Guangxi | 0.74 | 4.00 | 2.08 |
Liaoning | 2.58 | 7.58 | 4.03 | Hainan | 3.46 | 8.40 | 4.44 |
Jilin | 4.32 | 4.36 | 2.88 | Chongqing | 3.43 | 5.85 | 4.17 |
Heilongjiang | 1.67 | 4.15 | 1.53 | Sichuan | 2.23 | 4.65 | 3.04 |
Shanghai | 5.43 | 9.45 | 7.52 | Guizhou | 1.86 | 5.89 | 3.26 |
Jiangsu | 0.69 | 4.75 | 2.97 | Yunnan | 1.50 | 5.38 | 3.57 |
Zhejiang | 2.07 | 7.35 | 5.30 | Shaanxi | 3.03 | 3.81 | 2.69 |
Anhui | 0.75 | 4.78 | 2.43 | Gansu | 2.14 | 8.71 | 3.25 |
Fujian | 0.64 | 5.11 | 2.59 | Qinghai | 3.14 | 8.56 | 4.23 |
Jiangxi | 1.16 | 4.49 | 2.06 | Ningxia | 3.84 | 7.31 | 4.92 |
Shandong | 0.77 | 3.52 | 2.25 | Xinjiang | 2.01 | 5.27 | 2.51 |