| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 18 |
3.6%
|
| 2 | 8 |
1.6%
|
|
| 3 | 16 |
3.2%
|
|
| 4 | 31 |
6.3%
|
|
| 5 | 97 |
19.6%
|
|
| 6 | 101 |
20.4%
|
|
| 7 | 86 |
17.4%
|
|
| 8 | 72 |
14.6%
|
|
| 9 | 37 |
7.5%
|
|
| 10 | Very effective | 28 |
5.7%
|
| 11 | Don't know | 155 | |
| Sysmiss | 70 |