Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 37 |
6.2%
|
0 | 549 |
91.8%
|
|
5 | 3 |
0.5%
|
|
10 | 5 |
0.8%
|
|
20 | 3 |
0.5%
|
|
25 | 1 |
0.2%
|