| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 13 |
4%
|
| 2 | 5 |
1.5%
|
|
| 3 | 11 |
3.4%
|
|
| 4 | 26 |
8%
|
|
| 5 | 51 |
15.6%
|
|
| 6 | 37 |
11.3%
|
|
| 7 | 45 |
13.8%
|
|
| 8 | 45 |
13.8%
|
|
| 9 | 29 |
8.9%
|
|
| 10 | Very effective | 65 |
19.9%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 178 |