| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 2 |
2.8%
|
|
| 4 | 3 |
4.2%
|
|
| 6 | 3 |
4.2%
|
|
| 7 | 8 |
11.3%
|
|
| 8 | 19 |
26.8%
|
|
| 9 | 22 |
31%
|
|
| 10 | Very effective | 14 |
19.7%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 93 |