| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 36 |
21.1%
|
| 2 | 15 |
8.8%
|
|
| 3 | 7 |
4.1%
|
|
| 4 | 5 |
2.9%
|
|
| 5 | 14 |
8.2%
|
|
| 6 | 21 |
12.3%
|
|
| 7 | 17 |
9.9%
|
|
| 8 | 14 |
8.2%
|
|
| 9 | 11 |
6.4%
|
|
| 10 | Very effective | 31 |
18.1%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 171 |