| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 8 |
3.8%
|
| 2 | 6 |
2.8%
|
|
| 3 | 8 |
3.8%
|
|
| 4 | 9 |
4.3%
|
|
| 5 | 12 |
5.7%
|
|
| 6 | 13 |
6.2%
|
|
| 7 | 15 |
7.1%
|
|
| 8 | 11 |
5.2%
|
|
| 9 | 11 |
5.2%
|
|
| 10 | Very effective | 12 |
5.7%
|
| 11 | 106 |
50.2%
|
|
| Sysmiss | 5 |