| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 33 |
21.9%
|
| -7 | Doesn't apply | 0 |
0%
|
| 0 | 10 |
6.6%
|
|
| 1 | 31 |
20.5%
|
|
| 2 | 35 |
23.2%
|
|
| 3 | 14 |
9.3%
|
|
| 4 | 3 |
2%
|
|
| 5 | 14 |
9.3%
|
|
| 6 | 3 |
2%
|
|
| 8 | 3 |
2%
|
|
| 9 | 2 |
1.3%
|
|
| 10 | 2 |
1.3%
|
|
| 50 | 1 |
0.7%
|