| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 23 |
7.8%
|
| 2 | 6 |
2%
|
|
| 3 | 11 |
3.7%
|
|
| 4 | 19 |
6.5%
|
|
| 5 | 57 |
19.4%
|
|
| 6 | 30 |
10.2%
|
|
| 7 | 30 |
10.2%
|
|
| 8 | 13 |
4.4%
|
|
| 9 | 11 |
3.7%
|
|
| 10 | Very effective | 8 |
2.7%
|
| 11 | 86 |
29.3%
|
|
| Sysmiss | 7 |