| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 16 |
9.8%
|
|
| 1 | 80 |
49.1%
|
|
| 2 | 59 |
36.2%
|
|
| 3 | 1 |
0.6%
|
|
| 4 | 1 |
0.6%
|
|
| 5 | 1 |
0.6%
|
|
| 10 | 3 |
1.8%
|
|
| 15 | 2 |
1.2%
|