| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
2.3%
|
| 2 | 6 |
2%
|
|
| 3 | 8 |
2.7%
|
|
| 4 | 13 |
4.3%
|
|
| 5 | 27 |
9%
|
|
| 6 | 23 |
7.6%
|
|
| 7 | 43 |
14.3%
|
|
| 8 | 47 |
15.6%
|
|
| 9 | 30 |
10%
|
|
| 10 | Very effective | 37 |
12.3%
|
| 11 | 60 |
19.9%
|
|
| Sysmiss | 26 |