| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 28 |
20.9%
|
| -8 | Refusal (spontaneous) | 0 |
0%
|
| -7 | Does not apply | 0 |
0%
|
| 0 | 29 |
21.6%
|
|
| 1 | 2 |
1.5%
|
|
| 10 | 2 |
1.5%
|
|
| 15 | 6 |
4.5%
|
|
| 20 | 10 |
7.5%
|
|
| 25 | 6 |
4.5%
|
|
| 30 | 42 |
31.3%
|
|
| 35 | 1 |
0.7%
|
|
| 40 | 1 |
0.7%
|
|
| 45 | 3 |
2.2%
|
|
| 50 | 3 |
2.2%
|
|
| 55 | 1 |
0.7%
|
|
| Sysmiss | 17 |