| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 214 |
59.3%
|
|
| 1 | 83 |
23%
|
|
| 2 | 41 |
11.4%
|
|
| 3 | 16 |
4.4%
|
|
| 4 | 4 |
1.1%
|
|
| 5 | 3 |
0.8%
|