| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 2 |
1.6%
|
|
| 3 | 4 |
3.1%
|
|
| 4 | 6 |
4.7%
|
|
| 5 | 13 |
10.1%
|
|
| 6 | 19 |
14.7%
|
|
| 7 | 33 |
25.6%
|
|
| 8 | 40 |
31%
|
|
| 9 | 8 |
6.2%
|
|
| 10 | Very effective | 4 |
3.1%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 165 |