| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 0 |
0%
|
| 15 | 1 |
25%
|
|
| 30 | 1 |
25%
|
|
| 60 | 1 |
25%
|
|
| 90 | 1 |
25%
|