| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 19 |
7.5%
|
| 2 | 11 |
4.3%
|
|
| 3 | 6 |
2.4%
|
|
| 4 | 15 |
5.9%
|
|
| 5 | 21 |
8.2%
|
|
| 6 | 23 |
9%
|
|
| 7 | 37 |
14.5%
|
|
| 8 | 26 |
10.2%
|
|
| 9 | 20 |
7.8%
|
|
| 10 | Very effective | 32 |
12.5%
|
| 11 | 45 |
17.6%
|
|
| Sysmiss | 9 |