| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 16 |
5.8%
|
| 2 | 11 |
4%
|
|
| 3 | 14 |
5%
|
|
| 4 | 26 |
9.4%
|
|
| 5 | 53 |
19.1%
|
|
| 6 | 34 |
12.2%
|
|
| 7 | 30 |
10.8%
|
|
| 8 | 43 |
15.5%
|
|
| 9 | 13 |
4.7%
|
|
| 10 | Very effective | 38 |
13.7%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 227 |