| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 8 |
5.2%
|
| 2 | 5 |
3.2%
|
|
| 3 | 9 |
5.8%
|
|
| 4 | 15 |
9.7%
|
|
| 5 | 21 |
13.5%
|
|
| 6 | 14 |
9%
|
|
| 7 | 15 |
9.7%
|
|
| 8 | 30 |
19.4%
|
|
| 9 | 18 |
11.6%
|
|
| 10 | Very effective | 20 |
12.9%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 102 |