| Value | Category | Cases | |
|---|---|---|---|
| -99 | 13 |
3.4%
|
|
| 1 | Not effective at all | 3 |
0.8%
|
| 2 | 6 |
1.6%
|
|
| 3 | 4 |
1.1%
|
|
| 4 | 8 |
2.1%
|
|
| 5 | 40 |
10.5%
|
|
| 6 | 43 |
11.3%
|
|
| 7 | 44 |
11.6%
|
|
| 8 | 30 |
7.9%
|
|
| 9 | 25 |
6.6%
|
|
| 10 | Very effective | 7 |
1.8%
|
| 11 | Don't know | 157 |
41.3%
|
| Sysmiss | 4 |