| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 14 |
5.5%
|
| 2 | 8 |
3.2%
|
|
| 3 | 15 |
5.9%
|
|
| 4 | 12 |
4.7%
|
|
| 5 | 37 |
14.6%
|
|
| 6 | 23 |
9.1%
|
|
| 7 | 21 |
8.3%
|
|
| 8 | 26 |
10.3%
|
|
| 9 | 13 |
5.1%
|
|
| 10 | Very effective | 11 |
4.3%
|
| 11 | 73 |
28.9%
|
|
| Sysmiss | 11 |