| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 29 |
17.6%
|
| -7 | NE S'APPLIQUE PAS (SPONTANEOUS) | 11 |
6.7%
|
| 0 | Not an obstacle | 22 |
13.3%
|
| 1 | Minor obstacle | 29 |
17.6%
|
| 2 | Moderate obstacle | 40 |
24.2%
|
| 3 | Major obstacle | 31 |
18.8%
|
| 4 | A very serious obstacle | 3 |
1.8%
|
| Sysmiss | 931 |