年份 |
不透水层面积(m2) |
不透水率 |
2013 |
774,394,200 |
11.75% |
2014 |
866,862,000 |
14.03% |
2016 |
1,307,335,500 |
19.84% |
2017 |
1,464,299,100 |
22.21% |
2018 |
1,769,500,800 |
26.85% |