Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 15 |
2.1%
|
0 | 688 |
96.9%
|
|
5 | 1 |
0.1%
|
|
10 | 2 |
0.3%
|
|
20 | 3 |
0.4%
|
|
30 | 1 |
0.1%
|