| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 15 |
6.1%
|
| 2 | 4 |
1.6%
|
|
| 3 | 15 |
6.1%
|
|
| 4 | 12 |
4.9%
|
|
| 5 | 30 |
12.2%
|
|
| 6 | 40 |
16.3%
|
|
| 7 | 35 |
14.3%
|
|
| 8 | 36 |
14.7%
|
|
| 9 | 18 |
7.3%
|
|
| 10 | Very effective | 40 |
16.3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 260 |