| Value | Category | Cases | |
|---|---|---|---|
| -99 | 8 |
2%
|
|
| 1 | Not effective at all | 13 |
3.3%
|
| 2 | 12 |
3%
|
|
| 3 | 6 |
1.5%
|
|
| 4 | 17 |
4.3%
|
|
| 5 | 36 |
9.1%
|
|
| 6 | 35 |
8.9%
|
|
| 7 | 40 |
10.1%
|
|
| 8 | 27 |
6.8%
|
|
| 9 | 21 |
5.3%
|
|
| 10 | Very effective | 19 |
4.8%
|
| 11 | Don't know | 161 |
40.8%
|
| Sysmiss | 12 |