| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 41 |
21.1%
|
| 2 | 15 |
7.7%
|
|
| 3 | 10 |
5.2%
|
|
| 4 | 18 |
9.3%
|
|
| 5 | 20 |
10.3%
|
|
| 6 | 13 |
6.7%
|
|
| 7 | 11 |
5.7%
|
|
| 8 | 16 |
8.2%
|
|
| 9 | 11 |
5.7%
|
|
| 10 | Very effective | 39 |
20.1%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 148 |