| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
1.8%
|
| 2 | 4 |
1.4%
|
|
| 3 | 7 |
2.5%
|
|
| 4 | 11 |
4%
|
|
| 5 | 22 |
7.9%
|
|
| 6 | 48 |
17.3%
|
|
| 7 | 38 |
13.7%
|
|
| 8 | 60 |
21.7%
|
|
| 9 | 33 |
11.9%
|
|
| 10 | Very effective | 25 |
9%
|
| 11 | 24 |
8.7%
|
|
| Sysmiss | 4 |