| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 19 |
7.6%
|
| 2 | 16 |
6.4%
|
|
| 3 | 9 |
3.6%
|
|
| 4 | 13 |
5.2%
|
|
| 5 | 26 |
10.4%
|
|
| 6 | 29 |
11.6%
|
|
| 7 | 29 |
11.6%
|
|
| 8 | 22 |
8.8%
|
|
| 9 | 13 |
5.2%
|
|
| 10 | Very effective | 13 |
5.2%
|
| 11 | 61 |
24.4%
|
|
| Sysmiss | 14 |