| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 1 | 8 |
7.2%
|
|
| 2 | 37 |
33.3%
|
|
| 3 | 31 |
27.9%
|
|
| 4 | 23 |
20.7%
|
|
| 5 | 8 |
7.2%
|
|
| 6 | 1 |
0.9%
|
|
| 7 | 1 |
0.9%
|
|
| 8 | 1 |
0.9%
|
|
| 496 | 1 |
0.9%
|