| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 13 |
4.6%
|
| 2 | 3 |
1.1%
|
|
| 3 | 10 |
3.6%
|
|
| 4 | 17 |
6.1%
|
|
| 5 | 43 |
15.4%
|
|
| 6 | 40 |
14.3%
|
|
| 7 | 37 |
13.2%
|
|
| 8 | 40 |
14.3%
|
|
| 9 | 22 |
7.9%
|
|
| 10 | Very effective | 55 |
19.6%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 225 |