| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.4%
|
| 0 | 209 |
89.7%
|
|
| 20 | 1 |
0.4%
|
|
| 25 | 1 |
0.4%
|
|
| 40 | 1 |
0.4%
|
|
| 50 | 4 |
1.7%
|
|
| 100 | 16 |
6.9%
|