| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
0.8%
|
| 2 | 14 |
2.7%
|
|
| 3 | 54 |
10.3%
|
|
| 4 | 64 |
12.2%
|
|
| 5 | 85 |
16.2%
|
|
| 6 | 106 |
20.2%
|
|
| 7 | 80 |
15.2%
|
|
| 8 | 84 |
16%
|
|
| 9 | 27 |
5.1%
|
|
| 10 | Very effective | 8 |
1.5%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 37 |