| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 19 |
9.2%
|
| 2 | 17 |
8.2%
|
|
| 3 | 17 |
8.2%
|
|
| 4 | 12 |
5.8%
|
|
| 5 | 18 |
8.7%
|
|
| 6 | 15 |
7.2%
|
|
| 7 | 9 |
4.3%
|
|
| 8 | 7 |
3.4%
|
|
| 9 | 6 |
2.9%
|
|
| 10 | Very effective | 10 |
4.8%
|
| 11 | 77 |
37.2%
|
|
| Sysmiss | 15 |