| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 24 |
9.3%
|
| 2 | 15 |
5.8%
|
|
| 3 | 9 |
3.5%
|
|
| 4 | 19 |
7.3%
|
|
| 5 | 38 |
14.7%
|
|
| 6 | 30 |
11.6%
|
|
| 7 | 29 |
11.2%
|
|
| 8 | 12 |
4.6%
|
|
| 9 | 7 |
2.7%
|
|
| 10 | Very effective | 17 |
6.6%
|
| 11 | 59 |
22.8%
|
|
| Sysmiss | 5 |