
| 2010 | 2011 | 2012 | |
|---|---|---|---|
| Environmental expenditures, total | 9 761 221 | 8 703 050 | 6 962 810 | 
| Environmental current expenditure | 5 539 211 | 5 073 165 | 4 509 492 | 
| Environmental investments, total | 4 222 010 | 3 629 885 | 2 453 317 | 
| End-of-pipe investment | 2 892 446 | 3 003 034 | 1 893 418 | 
| Investments in integrated technologies | 1 329 564 | 626 851 | 559 899 |