| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.4%
|
| 0 | 236 |
97.5%
|
|
| 18 | 1 |
0.4%
|
|
| 90 | 1 |
0.4%
|
|
| 100 | 3 |
1.2%
|