| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
1.1%
|
| 2 | 0 |
0%
|
|
| 3 | 3 |
1.1%
|
|
| 4 | 8 |
2.9%
|
|
| 5 | 31 |
11.2%
|
|
| 6 | 47 |
16.9%
|
|
| 7 | 61 |
21.9%
|
|
| 8 | 51 |
18.3%
|
|
| 9 | 33 |
11.9%
|
|
| 10 | Very effective | 28 |
10.1%
|
| 11 | 13 |
4.7%
|
|
| Sysmiss | 3 |