Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 4 |
3.6%
|
0 | 99 |
89.2%
|
|
10 | 2 |
1.8%
|
|
20 | 5 |
4.5%
|
|
30 | 1 |
0.9%
|