| Value | Category | Cases | |
|---|---|---|---|
| 3 | 3 |
4.6%
|
|
| 4 | 2 |
3.1%
|
|
| 5 | 3 |
4.6%
|
|
| 6 | 4 |
6.2%
|
|
| 7 | 3 |
4.6%
|
|
| 10 | Very effective | 1 |
1.5%
|
| 11 | Don’t know | 31 |
47.7%
|
| Sysmiss | 18 |
27.7%
|