| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
7.3%
|
| 2 | 2 |
2.4%
|
|
| 3 | 8 |
9.8%
|
|
| 4 | 6 |
7.3%
|
|
| 5 | 9 |
11%
|
|
| 6 | 14 |
17.1%
|
|
| 7 | 9 |
11%
|
|
| 8 | 7 |
8.5%
|
|
| 9 | 11 |
13.4%
|
|
| 10 | Very effective | 10 |
12.2%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 84 |