| Value | Category | Cases | |
|---|---|---|---|
| -99 | 6 |
4.1%
|
|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 5 |
3.4%
|
|
| 3 | 3 |
2%
|
|
| 4 | 4 |
2.7%
|
|
| 5 | 15 |
10.2%
|
|
| 6 | 15 |
10.2%
|
|
| 7 | 21 |
14.3%
|
|
| 8 | 15 |
10.2%
|
|
| 9 | 3 |
2%
|
|
| 10 | Very effective | 9 |
6.1%
|
| 11 | Don't know | 51 |
34.7%
|
| Sysmiss | 5 |