| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 16 |
4.9%
|
| 2 | 10 |
3%
|
|
| 3 | 22 |
6.7%
|
|
| 4 | 14 |
4.3%
|
|
| 5 | 35 |
10.7%
|
|
| 6 | 46 |
14%
|
|
| 7 | 55 |
16.8%
|
|
| 8 | 40 |
12.2%
|
|
| 9 | 25 |
7.6%
|
|
| 10 | Very effective | 65 |
19.8%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 177 |