| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 10 |
3.5%
|
| 2 | 13 |
4.6%
|
|
| 3 | 17 |
6%
|
|
| 4 | 18 |
6.4%
|
|
| 5 | 35 |
12.4%
|
|
| 6 | 35 |
12.4%
|
|
| 7 | 56 |
19.8%
|
|
| 8 | 35 |
12.4%
|
|
| 9 | 18 |
6.4%
|
|
| 10 | Very effective | 46 |
16.3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 85 |