| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 12 |
5.6%
|
| 2 | 6 |
2.8%
|
|
| 3 | 8 |
3.7%
|
|
| 4 | 10 |
4.6%
|
|
| 5 | 22 |
10.2%
|
|
| 6 | 24 |
11.1%
|
|
| 7 | 37 |
17.1%
|
|
| 8 | 37 |
17.1%
|
|
| 9 | 34 |
15.7%
|
|
| 10 | Very effective | 26 |
12%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 175 |