| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 8 |
0.7%
|
| 1 | 68 |
6.2%
|
|
| 2 | 345 |
31.5%
|
|
| 3 | 307 |
28%
|
|
| 4 | 357 |
32.6%
|
|
| 5 | 7 |
0.6%
|
|
| 6 | 1 |
0.1%
|
|
| 7 | 1 |
0.1%
|
|
| 10 | 1 |
0.1%
|
|
| 55 | 1 |
0.1%
|