| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 23 |
7.8%
|
| 2 | 6 |
2%
|
|
| 3 | 11 |
3.8%
|
|
| 4 | 18 |
6.1%
|
|
| 5 | 53 |
18.1%
|
|
| 6 | 65 |
22.2%
|
|
| 7 | 29 |
9.9%
|
|
| 8 | 15 |
5.1%
|
|
| 9 | 5 |
1.7%
|
|
| 10 | Very effective | 10 |
3.4%
|
| 11 | 58 |
19.8%
|
|
| Sysmiss | 8 |