| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
1.8%
|
| 2 | 4 |
1.4%
|
|
| 3 | 11 |
4%
|
|
| 4 | 16 |
5.8%
|
|
| 5 | 41 |
14.7%
|
|
| 6 | 32 |
11.5%
|
|
| 7 | 47 |
16.9%
|
|
| 8 | 48 |
17.3%
|
|
| 9 | 30 |
10.8%
|
|
| 10 | Very effective | 17 |
6.1%
|
| 11 | 27 |
9.7%
|
|
| Sysmiss | 3 |