| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 12 |
5.6%
|
| 2 | 6 |
2.8%
|
|
| 3 | 11 |
5.1%
|
|
| 4 | 14 |
6.5%
|
|
| 5 | 15 |
7%
|
|
| 6 | 12 |
5.6%
|
|
| 7 | 17 |
7.9%
|
|
| 8 | 14 |
6.5%
|
|
| 9 | 11 |
5.1%
|
|
| 10 | Very effective | 16 |
7.5%
|
| 11 | 86 |
40.2%
|
|
| Sysmiss | 2 |