| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
2.3%
|
| 2 | 7 |
2.7%
|
|
| 3 | 11 |
4.2%
|
|
| 4 | 8 |
3%
|
|
| 5 | 17 |
6.5%
|
|
| 6 | 22 |
8.4%
|
|
| 7 | 24 |
9.1%
|
|
| 8 | 26 |
9.9%
|
|
| 9 | 27 |
10.3%
|
|
| 10 | Very effective | 27 |
10.3%
|
| 11 | 88 |
33.5%
|
|
| Sysmiss | 44 |