| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
2.8%
|
| 2 | 1 |
0.9%
|
|
| 3 | 7 |
6.5%
|
|
| 4 | 10 |
9.3%
|
|
| 5 | 25 |
23.4%
|
|
| 6 | 20 |
18.7%
|
|
| 7 | 14 |
13.1%
|
|
| 8 | 13 |
12.1%
|
|
| 9 | 11 |
10.3%
|
|
| 10 | Very effective | 3 |
2.8%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 84 |