| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
1.4%
|
| 3 | 3 |
2%
|
|
| 4 | 5 |
3.4%
|
|
| 5 | 9 |
6.1%
|
|
| 6 | 28 |
19%
|
|
| 7 | 36 |
24.5%
|
|
| 8 | 40 |
27.2%
|
|
| 9 | 17 |
11.6%
|
|
| 10 | Very effective | 7 |
4.8%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 147 |