| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 20 |
5.2%
|
| 2 | 27 |
7%
|
|
| 3 | 39 |
10.1%
|
|
| 4 | 36 |
9.3%
|
|
| 5 | 47 |
12.1%
|
|
| 6 | 49 |
12.7%
|
|
| 7 | 62 |
16%
|
|
| 8 | 58 |
15%
|
|
| 9 | 30 |
7.8%
|
|
| 10 | Very effective | 19 |
4.9%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 88 |