| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 18 |
7.2%
|
| 2 | 15 |
6%
|
|
| 3 | 18 |
7.2%
|
|
| 4 | 21 |
8.4%
|
|
| 5 | 35 |
14.1%
|
|
| 6 | 25 |
10%
|
|
| 7 | 27 |
10.8%
|
|
| 8 | 13 |
5.2%
|
|
| 9 | 9 |
3.6%
|
|
| 10 | Very effective | 10 |
4%
|
| 11 | 58 |
23.3%
|
|
| Sysmiss | 15 |