| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 20 |
11%
|
| 2 | 7 |
3.9%
|
|
| 3 | 9 |
5%
|
|
| 4 | 11 |
6.1%
|
|
| 5 | 26 |
14.4%
|
|
| 6 | 15 |
8.3%
|
|
| 7 | 19 |
10.5%
|
|
| 8 | 18 |
9.9%
|
|
| 9 | 12 |
6.6%
|
|
| 10 | Very effective | 44 |
24.3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 161 |