| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
2.3%
|
| 2 | 4 |
1.3%
|
|
| 3 | 13 |
4.3%
|
|
| 4 | 16 |
5.2%
|
|
| 5 | 40 |
13.1%
|
|
| 6 | 37 |
12.1%
|
|
| 7 | 45 |
14.8%
|
|
| 8 | 30 |
9.8%
|
|
| 9 | 16 |
5.2%
|
|
| 10 | Very effective | 13 |
4.3%
|
| 11 | 84 |
27.5%
|
|
| Sysmiss | 22 |