| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 11 |
4.1%
|
| 2 | 8 |
3%
|
|
| 3 | 9 |
3.4%
|
|
| 4 | 17 |
6.3%
|
|
| 5 | 52 |
19.4%
|
|
| 6 | 35 |
13.1%
|
|
| 7 | 39 |
14.6%
|
|
| 8 | 36 |
13.4%
|
|
| 9 | 23 |
8.6%
|
|
| 10 | Very effective | 38 |
14.2%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 237 |