| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 11 |
4%
|
| 2 | 5 |
1.8%
|
|
| 3 | 9 |
3.2%
|
|
| 4 | 10 |
3.6%
|
|
| 5 | 30 |
10.8%
|
|
| 6 | 20 |
7.2%
|
|
| 7 | 28 |
10.1%
|
|
| 8 | 27 |
9.7%
|
|
| 9 | 17 |
6.1%
|
|
| 10 | Very effective | 20 |
7.2%
|
| 11 | 101 |
36.3%
|
|
| Sysmiss | 29 |