| Value | Category | Cases | |
|---|---|---|---|
| -99 | 6 |
1.9%
|
|
| 1 | Not effective at all | 6 |
1.9%
|
| 2 | 4 |
1.3%
|
|
| 3 | 15 |
4.9%
|
|
| 4 | 13 |
4.2%
|
|
| 5 | 33 |
10.7%
|
|
| 6 | 25 |
8.1%
|
|
| 7 | 40 |
12.9%
|
|
| 8 | 35 |
11.3%
|
|
| 9 | 16 |
5.2%
|
|
| 10 | Very effective | 8 |
2.6%
|
| 11 | Don’t know | 77 |
24.9%
|
| Sysmiss | 31 |
10%
|