| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
2.1%
|
| 2 | 2 |
1%
|
|
| 3 | 15 |
7.8%
|
|
| 4 | 12 |
6.3%
|
|
| 5 | 22 |
11.5%
|
|
| 6 | 29 |
15.1%
|
|
| 7 | 16 |
8.3%
|
|
| 8 | 18 |
9.4%
|
|
| 9 | 12 |
6.3%
|
|
| 10 | Very effective | 8 |
4.2%
|
| 11 | 54 |
28.1%
|
|
| Sysmiss | 10 |