| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 183 |
36.5%
|
| -8 | Refusal (spontaneous) | 97 |
19.3%
|
| 0 | 12 |
2.4%
|
|
| 1 | 8 |
1.6%
|
|
| 2 | 17 |
3.4%
|
|
| 3 | 28 |
5.6%
|
|
| 4 | 3 |
0.6%
|
|
| 5 | 6 |
1.2%
|
|
| 6 | 1 |
0.2%
|
|
| 7 | 2 |
0.4%
|
|
| 8 | 5 |
1%
|
|
| 10 | 40 |
8%
|
|
| 11 | 3 |
0.6%
|
|
| 12 | 8 |
1.6%
|
|
| 14 | 1 |
0.2%
|
|
| 15 | 67 |
13.3%
|
|
| 17 | 1 |
0.2%
|
|
| 20 | 13 |
2.6%
|
|
| 22 | 1 |
0.2%
|
|
| 27 | 1 |
0.2%
|
|
| 30 | 3 |
0.6%
|
|
| 40 | 1 |
0.2%
|
|
| 50 | 1 |
0.2%
|