| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
5.6%
|
| 2 | 2 |
2.2%
|
|
| 3 | 15 |
16.7%
|
|
| 4 | 9 |
10%
|
|
| 5 | 13 |
14.4%
|
|
| 6 | 11 |
12.2%
|
|
| 7 | 19 |
21.1%
|
|
| 8 | 11 |
12.2%
|
|
| 9 | 2 |
2.2%
|
|
| 10 | Very effective | 3 |
3.3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 58 |