| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 28 |
10.7%
|
| 2 | 11 |
4.2%
|
|
| 3 | 8 |
3.1%
|
|
| 4 | 15 |
5.7%
|
|
| 5 | 24 |
9.2%
|
|
| 6 | 27 |
10.3%
|
|
| 7 | 33 |
12.6%
|
|
| 8 | 24 |
9.2%
|
|
| 9 | 12 |
4.6%
|
|
| 10 | Very effective | 14 |
5.4%
|
| 11 | 65 |
24.9%
|
|
| Sysmiss | 3 |