| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 10 |
7.5%
|
| 2 | 2 |
1.5%
|
|
| 3 | 6 |
4.5%
|
|
| 4 | 9 |
6.7%
|
|
| 5 | 17 |
12.7%
|
|
| 6 | 9 |
6.7%
|
|
| 7 | 13 |
9.7%
|
|
| 8 | 7 |
5.2%
|
|
| 9 | 4 |
3%
|
|
| 10 | Very effective | 5 |
3.7%
|
| 11 | 52 |
38.8%
|
|
| Sysmiss | 10 |