| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 10 |
3.7%
|
| 2 | 10 |
3.7%
|
|
| 3 | 5 |
1.9%
|
|
| 4 | 5 |
1.9%
|
|
| 5 | 20 |
7.5%
|
|
| 6 | 20 |
7.5%
|
|
| 7 | 28 |
10.4%
|
|
| 8 | 37 |
13.8%
|
|
| 9 | 16 |
6%
|
|
| 10 | Very effective | 18 |
6.7%
|
| 11 | 99 |
36.9%
|
|
| Sysmiss | 39 |