| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 11 |
4%
|
| 2 | 12 |
4.3%
|
|
| 3 | 11 |
4%
|
|
| 4 | 11 |
4%
|
|
| 5 | 18 |
6.5%
|
|
| 6 | 18 |
6.5%
|
|
| 7 | 24 |
8.6%
|
|
| 8 | 25 |
9%
|
|
| 9 | 17 |
6.1%
|
|
| 10 | Very effective | 23 |
8.3%
|
| 11 | 108 |
38.8%
|
|
| Sysmiss | 29 |