| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 13 |
12.9%
|
| 2 | 5 |
5%
|
|
| 3 | 8 |
7.9%
|
|
| 4 | 16 |
15.8%
|
|
| 5 | 24 |
23.8%
|
|
| 6 | 9 |
8.9%
|
|
| 7 | 11 |
10.9%
|
|
| 8 | 5 |
5%
|
|
| 9 | 2 |
2%
|
|
| 10 | Very effective | 8 |
7.9%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 156 |