| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
2.1%
|
| 2 | 2 |
1.1%
|
|
| 3 | 11 |
5.9%
|
|
| 4 | 7 |
3.7%
|
|
| 5 | 15 |
8%
|
|
| 6 | 18 |
9.6%
|
|
| 7 | 24 |
12.8%
|
|
| 8 | 47 |
25%
|
|
| 9 | 36 |
19.1%
|
|
| 10 | Very effective | 24 |
12.8%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 205 |