| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
1.8%
|
| 0 | 8 |
7%
|
|
| 1 | 14 |
12.3%
|
|
| 2 | 21 |
18.4%
|
|
| 3 | 24 |
21.1%
|
|
| 4 | 10 |
8.8%
|
|
| 5 | 12 |
10.5%
|
|
| 6 | 6 |
5.3%
|
|
| 7 | 3 |
2.6%
|
|
| 8 | 7 |
6.1%
|
|
| 10 | 2 |
1.8%
|
|
| 11 | 1 |
0.9%
|
|
| 13 | 1 |
0.9%
|
|
| 15 | 2 |
1.8%
|
|
| 40 | 1 |
0.9%
|