| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
4.1%
|
| 2 | 7 |
4.8%
|
|
| 3 | 12 |
8.2%
|
|
| 4 | 11 |
7.5%
|
|
| 5 | 27 |
18.5%
|
|
| 6 | 23 |
15.8%
|
|
| 7 | 16 |
11%
|
|
| 8 | 21 |
14.4%
|
|
| 9 | 11 |
7.5%
|
|
| 10 | Very effective | 12 |
8.2%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 209 |