| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 139 |
88.5%
|
|
| 2 | 1 |
0.6%
|
|
| 5 | 4 |
2.5%
|
|
| 10 | 1 |
0.6%
|
|
| 20 | 2 |
1.3%
|
|
| 25 | 2 |
1.3%
|
|
| 30 | 1 |
0.6%
|
|
| 35 | 1 |
0.6%
|
|
| 40 | 2 |
1.3%
|
|
| 60 | 1 |
0.6%
|
|
| 71 | 1 |
0.6%
|
|
| 80 | 2 |
1.3%
|