| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 13 |
3.4%
|
| 2 | 9 |
2.4%
|
|
| 3 | 24 |
6.3%
|
|
| 4 | 40 |
10.5%
|
|
| 5 | 54 |
14.2%
|
|
| 6 | 52 |
13.6%
|
|
| 7 | 57 |
15%
|
|
| 8 | 58 |
15.2%
|
|
| 9 | 35 |
9.2%
|
|
| 10 | Very effective | 39 |
10.2%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 94 |