| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 15 |
9.1%
|
| 2 | 3 |
1.8%
|
|
| 3 | 8 |
4.9%
|
|
| 4 | 19 |
11.6%
|
|
| 5 | 22 |
13.4%
|
|
| 6 | 14 |
8.5%
|
|
| 7 | 21 |
12.8%
|
|
| 8 | 24 |
14.6%
|
|
| 9 | 12 |
7.3%
|
|
| 10 | Very effective | 26 |
15.9%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 93 |