| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 10 |
3.3%
|
| 2 | 12 |
3.9%
|
|
| 3 | 5 |
1.6%
|
|
| 4 | 24 |
7.8%
|
|
| 5 | 34 |
11.1%
|
|
| 6 | 32 |
10.4%
|
|
| 7 | 52 |
16.9%
|
|
| 8 | 40 |
13%
|
|
| 9 | 12 |
3.9%
|
|
| 10 | Very effective | 23 |
7.5%
|
| 11 | 63 |
20.5%
|
|
| Sysmiss | 20 |