| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 4 |
1.8%
|
|
| 3 | 7 |
3.2%
|
|
| 4 | 13 |
5.9%
|
|
| 5 | 29 |
13.2%
|
|
| 6 | 33 |
15%
|
|
| 7 | 55 |
25%
|
|
| 8 | 39 |
17.7%
|
|
| 9 | 19 |
8.6%
|
|
| 10 | Very effective | 21 |
9.5%
|
| 11 | Don't know | 15 | |
| Sysmiss | 18 |