| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
1%
|
| 2 | 6 |
2%
|
|
| 3 | 6 |
2%
|
|
| 4 | 9 |
2.9%
|
|
| 5 | 27 |
8.8%
|
|
| 6 | 41 |
13.4%
|
|
| 7 | 53 |
17.3%
|
|
| 8 | 47 |
15.3%
|
|
| 9 | 41 |
13.4%
|
|
| 10 | Very effective | 31 |
10.1%
|
| 11 | 43 |
14%
|
|
| Sysmiss | 20 |