| Value | Category | Cases | |
|---|---|---|---|
| 0 | 22 |
73.3%
|
|
| 1 | 1 |
3.3%
|
|
| 13 | 1 |
3.3%
|
|
| 3 | 2 |
6.7%
|
|
| 4 | 1 |
3.3%
|
|
| 5 | 1 |
3.3%
|
|
| 9 | 1 |
3.3%
|
|
| Don't know | 1 |
3.3%
|