| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.4%
|
| -7 | None of the above (spontaneous) | 13 |
5.8%
|
| 1 | Heating and cooling improvements | 28 |
12.5%
|
| 2 | More climate-friendly energy generation on site | 6 |
2.7%
|
| 3 | Machinery and equipment upgrades | 42 |
18.8%
|
| 4 | Energy management | 33 |
14.7%
|
| 5 | Waste minimization, recycling and waste management | 33 |
14.7%
|
| 6 | Air pollution control measures | 11 |
4.9%
|
| 7 | Water management | 6 |
2.7%
|
| 8 | Upgrade of vehicles | 19 |
8.5%
|
| 9 | Improvements to lighting system | 22 |
9.8%
|
| 10 | Other pollution control measures | 10 |
4.5%
|
| Sysmiss | 136 |