| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 9 |
2.6%
|
| 2 | 19 |
5.5%
|
|
| 3 | 27 |
7.8%
|
|
| 4 | 40 |
11.6%
|
|
| 5 | 42 |
12.2%
|
|
| 6 | 55 |
15.9%
|
|
| 7 | 55 |
15.9%
|
|
| 8 | 50 |
14.5%
|
|
| 9 | 26 |
7.5%
|
|
| 10 | Very effective | 22 |
6.4%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 130 |