| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
1.7%
|
| 2 | 3 |
1.7%
|
|
| 3 | 8 |
4.6%
|
|
| 4 | 5 |
2.9%
|
|
| 5 | 24 |
13.8%
|
|
| 6 | 29 |
16.7%
|
|
| 7 | 29 |
16.7%
|
|
| 8 | 21 |
12.1%
|
|
| 9 | 28 |
16.1%
|
|
| 10 | Very effective | 24 |
13.8%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 181 |