| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 1 |
1%
|
|
| 4 | 3 |
3%
|
|
| 5 | 11 |
11.1%
|
|
| 6 | 11 |
11.1%
|
|
| 7 | 23 |
23.2%
|
|
| 8 | 28 |
28.3%
|
|
| 9 | 16 |
16.2%
|
|
| 10 | Very effective | 6 |
6.1%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 15 |