| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 10 |
3.8%
|
| 2 | 8 |
3%
|
|
| 3 | 11 |
4.2%
|
|
| 4 | 18 |
6.8%
|
|
| 5 | 32 |
12.1%
|
|
| 6 | 34 |
12.8%
|
|
| 7 | 38 |
14.3%
|
|
| 8 | 37 |
14%
|
|
| 9 | 33 |
12.5%
|
|
| 10 | Very effective | 44 |
16.6%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 240 |