| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 11 |
10.8%
|
| 2 | 8 |
7.8%
|
|
| 3 | 12 |
11.8%
|
|
| 4 | 5 |
4.9%
|
|
| 5 | 11 |
10.8%
|
|
| 6 | 15 |
14.7%
|
|
| 7 | 14 |
13.7%
|
|
| 8 | 13 |
12.7%
|
|
| 9 | 11 |
10.8%
|
|
| 10 | Very effective | 2 |
2%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 152 |