| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 28 |
14.8%
|
| 2 | 7 |
3.7%
|
|
| 3 | 11 |
5.8%
|
|
| 4 | 13 |
6.9%
|
|
| 5 | 21 |
11.1%
|
|
| 6 | 17 |
9%
|
|
| 7 | 17 |
9%
|
|
| 8 | 19 |
10.1%
|
|
| 9 | 14 |
7.4%
|
|
| 10 | Very effective | 42 |
22.2%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 153 |