Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 31 |
5.2%
|
0 | 535 |
89.2%
|
|
5 | 8 |
1.3%
|
|
10 | 12 |
2%
|
|
15 | 5 |
0.8%
|
|
20 | 4 |
0.7%
|
|
25 | 2 |
0.3%
|
|
30 | 3 |
0.5%
|