Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 4 |
1.1%
|
0 | 339 |
92.9%
|
|
10 | 9 |
2.5%
|
|
15 | 2 |
0.5%
|
|
20 | 7 |
1.9%
|
|
25 | 1 |
0.3%
|
|
30 | 3 |
0.8%
|