| Value | Category | Cases | |
|---|---|---|---|
| -99 | 8 |
3.5%
|
|
| 1 | Not effective at all | 5 |
2.2%
|
| 2 | 3 |
1.3%
|
|
| 3 | 7 |
3%
|
|
| 4 | 11 |
4.8%
|
|
| 5 | 17 |
7.4%
|
|
| 6 | 26 |
11.3%
|
|
| 7 | 25 |
10.9%
|
|
| 8 | 19 |
8.3%
|
|
| 9 | 27 |
11.7%
|
|
| 10 | Very effective | 15 |
6.5%
|
| 11 | Don't know | 67 |
29.1%
|
| Sysmiss | 7 |