| Environmental domain | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|
| Wastewater management | 337,545 | 351,184 | 229,977 | 263,013 | 263,823 | 319,653 | 304,202 | 282,033 | 314,629 | 324,591 |
| Waste management | 206,381 | 302,385 | 170,824 | 174,803 | 261,575 | 323,741 | 305,245 | 321,510 | 336,865 | 493,712 |
| Other environmental protection activities | 107,563 | 114,793 | 103,790 | 151,074 | 109,290 | 129,642 | 156,721 | 90,319 | 178,458 | 374,549 |
| Total | 651,490 | 768,361 | 504,592 | 588,891 | 634,687 | 773,036 | 766,168 | 693,862 | 829,951 | 1,192,852 |