| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
2%
|
| 2 | 8 |
8%
|
|
| 3 | 8 |
8%
|
|
| 4 | 6 |
6%
|
|
| 5 | 17 |
17%
|
|
| 6 | 11 |
11%
|
|
| 7 | 13 |
13%
|
|
| 8 | 15 |
15%
|
|
| 9 | 14 |
14%
|
|
| 10 | Very effective | 6 |
6%
|
| -99 | 6 | ||
| 11 | Don't know | 130 | |
| Sysmiss | 24 |