| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 1 | 437 |
84.9%
|
|
| 2 | 66 |
12.8%
|
|
| 3 | 8 |
1.6%
|
|
| 4 | 2 |
0.4%
|
|
| 5 | 1 |
0.2%
|
|
| 6 | 1 |
0.2%
|