| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 26 |
16.1%
|
| 2 | 4 |
2.5%
|
|
| 3 | 13 |
8.1%
|
|
| 4 | 10 |
6.2%
|
|
| 5 | 16 |
9.9%
|
|
| 6 | 21 |
13%
|
|
| 7 | 16 |
9.9%
|
|
| 8 | 17 |
10.6%
|
|
| 9 | 13 |
8.1%
|
|
| 10 | Very effective | 25 |
15.5%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 181 |