| Value | Category | Cases | |
|---|---|---|---|
| -99 | 10 |
4.7%
|
|
| 1 | Not effective at all | 5 |
2.3%
|
| 2 | 5 |
2.3%
|
|
| 3 | 7 |
3.3%
|
|
| 4 | 10 |
4.7%
|
|
| 5 | 24 |
11.3%
|
|
| 6 | 18 |
8.5%
|
|
| 7 | 19 |
8.9%
|
|
| 8 | 9 |
4.2%
|
|
| 9 | 7 |
3.3%
|
|
| 10 | Very effective | 8 |
3.8%
|
| 11 | Don't know | 91 |
42.7%
|
| Sysmiss | 7 |