| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.3%
|
| -7 | None of the above (spontaneous) | 3 |
0.8%
|
| 1 | Heating and cooling improvements | 48 |
13.3%
|
| 2 | More climate-friendly energy generation on site | 41 |
11.4%
|
| 3 | Machinery and equipment upgrades | 57 |
15.8%
|
| 4 | Energy management | 57 |
15.8%
|
| 5 | Waste minimization, recycling and waste management | 54 |
15%
|
| 6 | Air pollution control measures | 24 |
6.6%
|
| 7 | Water management | 3 |
0.8%
|
| 8 | Upgrade of vehicles | 22 |
6.1%
|
| 9 | Improvements to lighting system | 44 |
12.2%
|
| 10 | Other pollution control measures | 7 |
1.9%
|
| Sysmiss | 399 |