| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 74 |
6.8%
|
| -7 | NE S'APPLIQUE PAS (SPONTANEOUS) | 58 |
5.3%
|
| 0 | Not an obstacle | 138 |
12.6%
|
| 1 | Minor obstacle | 245 |
22.4%
|
| 2 | Moderate obstacle | 374 |
34.1%
|
| 3 | Major obstacle | 175 |
16%
|
| 4 | A very serious obstacle | 32 |
2.9%
|