| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 28 |
14.7%
|
| 2 | 14 |
7.4%
|
|
| 3 | 8 |
4.2%
|
|
| 4 | 22 |
11.6%
|
|
| 5 | 18 |
9.5%
|
|
| 6 | 20 |
10.5%
|
|
| 7 | 19 |
10%
|
|
| 8 | 16 |
8.4%
|
|
| 9 | 12 |
6.3%
|
|
| 10 | Very effective | 33 |
17.4%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 152 |