| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't Know (Spontaneous) | 0 |
0%
|
| 1 | Standard for total energy use | 4 |
40%
|
| 2 | Standard for energy use relative to output | 4 |
40%
|
| 3 | Standard for energy use relative to other parameters | 2 |
20%
|
| Sysmiss | 367 |