| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 69 |
18.3%
|
| -8 | Refusal (spontaneous) | 16 |
4.2%
|
| 0 | 57 |
15.1%
|
|
| 1 | 5 |
1.3%
|
|
| 2 | 1 |
0.3%
|
|
| 3 | 5 |
1.3%
|
|
| 4 | 1 |
0.3%
|
|
| 5 | 4 |
1.1%
|
|
| 6 | 2 |
0.5%
|
|
| 7 | 2 |
0.5%
|
|
| 8 | 7 |
1.9%
|
|
| 10 | 148 |
39.2%
|
|
| 11 | 4 |
1.1%
|
|
| 12 | 23 |
6.1%
|
|
| 13 | 4 |
1.1%
|
|
| 14 | 10 |
2.6%
|
|
| 15 | 10 |
2.6%
|
|
| 16 | 3 |
0.8%
|
|
| 20 | 4 |
1.1%
|
|
| 30 | 2 |
0.5%
|
|
| 50 | 1 |
0.3%
|