| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 9 |
4.2%
|
| 2 | 8 |
3.7%
|
|
| 3 | 9 |
4.2%
|
|
| 4 | 17 |
7.9%
|
|
| 5 | 29 |
13.4%
|
|
| 6 | 27 |
12.5%
|
|
| 7 | 21 |
9.7%
|
|
| 8 | 24 |
11.1%
|
|
| 9 | 14 |
6.5%
|
|
| 10 | Very effective | 25 |
11.6%
|
| 11 | 33 |
15.3%
|
|
| Sysmiss | 6 |