| Value | Category | Cases | |
|---|---|---|---|
| -99 | 3 |
1%
|
|
| 1 | Not effective at all | 3 |
1%
|
| 2 | 6 |
2%
|
|
| 3 | 13 |
4.4%
|
|
| 4 | 22 |
7.5%
|
|
| 5 | 51 |
17.4%
|
|
| 6 | 43 |
14.7%
|
|
| 7 | 25 |
8.5%
|
|
| 8 | 18 |
6.1%
|
|
| 9 | 10 |
3.4%
|
|
| 10 | Very effective | 5 |
1.7%
|
| 11 | Don't know | 94 |
32.1%
|
| Sysmiss | 8 |