| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Impraticable | 32 |
2.7%
|
| 2 | Très mauvaise | 248 |
20.7%
|
| 3 | Mauvaise | 208 |
17.3%
|
| 4 | Passable | 496 |
41.3%
|
| 5 | Bonne | 176 |
14.7%
|
| 6 | Très bonne | 40 |
3.3%
|