| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
1.3%
|
| 2 | 6 |
2%
|
|
| 3 | 9 |
2.9%
|
|
| 4 | 16 |
5.2%
|
|
| 5 | 36 |
11.7%
|
|
| 6 | 28 |
9.1%
|
|
| 7 | 39 |
12.7%
|
|
| 8 | 40 |
13%
|
|
| 9 | 28 |
9.1%
|
|
| 10 | Very effective | 34 |
11.1%
|
| 11 | 67 |
21.8%
|
|
| Sysmiss | 20 |