| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 36 |
40.4%
|
| -8 | Refusal (spontaneous) | 13 |
14.6%
|
| 0 | 8 |
9%
|
|
| 2 | 1 |
1.1%
|
|
| 5 | 1 |
1.1%
|
|
| 10 | 1 |
1.1%
|
|
| 12 | 1 |
1.1%
|
|
| 20 | 2 |
2.2%
|
|
| 30 | 5 |
5.6%
|
|
| 40 | 1 |
1.1%
|
|
| 45 | 1 |
1.1%
|
|
| 50 | 11 |
12.4%
|
|
| 60 | 1 |
1.1%
|
|
| 65 | 1 |
1.1%
|
|
| 90 | 1 |
1.1%
|
|
| 100 | 5 |
5.6%
|
|
| Sysmiss | 8 |