| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
4.3%
|
| 2 | 3 |
2.6%
|
|
| 3 | 7 |
6.1%
|
|
| 4 | 9 |
7.8%
|
|
| 5 | 17 |
14.8%
|
|
| 6 | 16 |
13.9%
|
|
| 7 | 14 |
12.2%
|
|
| 8 | 18 |
15.7%
|
|
| 9 | 11 |
9.6%
|
|
| 10 | Very effective | 15 |
13%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 253 |