| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
2.9%
|
| 2 | 2 |
1.4%
|
|
| 3 | 10 |
7.2%
|
|
| 4 | 11 |
8%
|
|
| 5 | 11 |
8%
|
|
| 6 | 18 |
13%
|
|
| 7 | 33 |
23.9%
|
|
| 8 | 16 |
11.6%
|
|
| 9 | 9 |
6.5%
|
|
| 10 | Very effective | 10 |
7.2%
|
| 11 | 14 |
10.1%
|
|
| Sysmiss | 6 |