| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 12 |
0.9%
|
| 0 | 1301 |
97.3%
|
|
| 8 | 1 |
0.1%
|
|
| 10 | 4 |
0.3%
|
|
| 15 | 1 |
0.1%
|
|
| 20 | 1 |
0.1%
|
|
| 40 | 1 |
0.1%
|
|
| 50 | 1 |
0.1%
|
|
| 100 | 15 |
1.1%
|