| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
2%
|
| 2 | 2 |
2%
|
|
| 3 | 3 |
2.9%
|
|
| 4 | 6 |
5.9%
|
|
| 5 | 11 |
10.8%
|
|
| 6 | 18 |
17.6%
|
|
| 7 | 31 |
30.4%
|
|
| 8 | 21 |
20.6%
|
|
| 9 | 6 |
5.9%
|
|
| 10 | Very effective | 2 |
2%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 192 |