| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.8%
|
| 1 | 3 |
2.5%
|
|
| 2 | 13 |
10.8%
|
|
| 3 | 18 |
15%
|
|
| 4 | 35 |
29.2%
|
|
| 5 | 24 |
20%
|
|
| 6 | 15 |
12.5%
|
|
| 7 | 5 |
4.2%
|
|
| 8 | 2 |
1.7%
|
|
| 9 | 2 |
1.7%
|
|
| 10 | 1 |
0.8%
|
|
| 12 | 1 |
0.8%
|