| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 11 |
5.4%
|
| 2 | 12 |
5.9%
|
|
| 3 | 19 |
9.3%
|
|
| 4 | 13 |
6.3%
|
|
| 5 | 20 |
9.8%
|
|
| 6 | 13 |
6.3%
|
|
| 7 | 9 |
4.4%
|
|
| 8 | 8 |
3.9%
|
|
| 9 | 6 |
2.9%
|
|
| 10 | Very effective | 11 |
5.4%
|
| 11 | 83 |
40.5%
|
|
| Sysmiss | 17 |