| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 3 |
3.2%
|
|
| 3 | 2 |
2.2%
|
|
| 5 | 6 |
6.5%
|
|
| 6 | 9 |
9.7%
|
|
| 7 | 20 |
21.5%
|
|
| 8 | 32 |
34.4%
|
|
| 9 | 11 |
11.8%
|
|
| 10 | Very effective | 10 |
10.8%
|
| -99 | 7 | ||
| 11 | Don't know | 50 | |
| Sysmiss | 7 |