| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
2.6%
|
| 2 | 9 |
3.3%
|
|
| 3 | 14 |
5.1%
|
|
| 4 | 12 |
4.4%
|
|
| 5 | 23 |
8.4%
|
|
| 6 | 17 |
6.2%
|
|
| 7 | 20 |
7.3%
|
|
| 8 | 19 |
7%
|
|
| 9 | 21 |
7.7%
|
|
| 10 | Very effective | 20 |
7.3%
|
| 11 | 111 |
40.7%
|
|
| Sysmiss | 34 |