| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
6.1%
|
| 2 | 6 |
7.3%
|
|
| 3 | 7 |
8.5%
|
|
| 4 | 4 |
4.9%
|
|
| 5 | 16 |
19.5%
|
|
| 6 | 8 |
9.8%
|
|
| 7 | 13 |
15.9%
|
|
| 8 | 9 |
11%
|
|
| 9 | 8 |
9.8%
|
|
| 10 | Very effective | 6 |
7.3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 286 |