| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
3.6%
|
| 2 | 4 |
2.9%
|
|
| 3 | 6 |
4.4%
|
|
| 4 | 9 |
6.6%
|
|
| 5 | 9 |
6.6%
|
|
| 6 | 13 |
9.5%
|
|
| 7 | 14 |
10.2%
|
|
| 8 | 13 |
9.5%
|
|
| 9 | 4 |
2.9%
|
|
| 10 | Very effective | 5 |
3.6%
|
| 11 | 55 |
40.1%
|
|
| Sysmiss | 7 |