| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 25 |
11.7%
|
| 2 | 14 |
6.5%
|
|
| 3 | 11 |
5.1%
|
|
| 4 | 8 |
3.7%
|
|
| 5 | 28 |
13.1%
|
|
| 6 | 21 |
9.8%
|
|
| 7 | 20 |
9.3%
|
|
| 8 | 21 |
9.8%
|
|
| 9 | 18 |
8.4%
|
|
| 10 | Very effective | 48 |
22.4%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 128 |