Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 3 |
0.6%
|
0 | 221 |
42.9%
|
|
1 | 187 |
36.3%
|
|
2 | 78 |
15.1%
|
|
3 | 20 |
3.9%
|
|
4 | 6 |
1.2%
|