Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 127 |
16.7%
|
0 | 623 |
82%
|
|
5 | 1 |
0.1%
|
|
10 | 6 |
0.8%
|
|
20 | 3 |
0.4%
|