| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 11 |
7.9%
|
| 2 | 11 |
7.9%
|
|
| 3 | 21 |
15%
|
|
| 4 | 14 |
10%
|
|
| 5 | 24 |
17.1%
|
|
| 6 | 20 |
14.3%
|
|
| 7 | 17 |
12.1%
|
|
| 8 | 9 |
6.4%
|
|
| 9 | 6 |
4.3%
|
|
| 10 | Very effective | 7 |
5%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 114 |