| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 9 |
9.1%
|
| 2 | 7 |
7.1%
|
|
| 3 | 10 |
10.1%
|
|
| 4 | 4 |
4%
|
|
| 5 | 17 |
17.2%
|
|
| 6 | 6 |
6.1%
|
|
| 7 | 16 |
16.2%
|
|
| 8 | 16 |
16.2%
|
|
| 9 | 5 |
5.1%
|
|
| 10 | Very effective | 9 |
9.1%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 161 |