| Value | Category | Cases | |
|---|---|---|---|
| -99 | 10 |
3.4%
|
|
| 1 | Not effective at all | 13 |
4.5%
|
| 2 | 19 |
6.5%
|
|
| 3 | 22 |
7.5%
|
|
| 4 | 22 |
7.5%
|
|
| 5 | 25 |
8.6%
|
|
| 6 | 21 |
7.2%
|
|
| 7 | 25 |
8.6%
|
|
| 8 | 8 |
2.7%
|
|
| 9 | 9 |
3.1%
|
|
| 10 | Very effective | 21 |
7.2%
|
| 11 | Don't know | 97 |
33.2%
|
| Sysmiss | 34 |