| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 14 |
7.2%
|
| 2 | 10 |
5.2%
|
|
| 3 | 28 |
14.4%
|
|
| 4 | 13 |
6.7%
|
|
| 5 | 21 |
10.8%
|
|
| 6 | 15 |
7.7%
|
|
| 7 | 14 |
7.2%
|
|
| 8 | 14 |
7.2%
|
|
| 9 | 7 |
3.6%
|
|
| 10 | Very effective | 6 |
3.1%
|
| 11 | 52 |
26.8%
|
|
| Sysmiss | 8 |