| Value | Category | Cases | |
|---|---|---|---|
| -99 | 8 |
3.5%
|
|
| 1 | Not effective at all | 4 |
1.8%
|
| 2 | 2 |
0.9%
|
|
| 3 | 9 |
3.9%
|
|
| 4 | 7 |
3.1%
|
|
| 5 | 25 |
11%
|
|
| 6 | 24 |
10.5%
|
|
| 7 | 24 |
10.5%
|
|
| 8 | 21 |
9.2%
|
|
| 9 | 25 |
11%
|
|
| 10 | Very effective | 12 |
5.3%
|
| 11 | Don't know | 67 |
29.4%
|
| Sysmiss | 9 |