| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 19 |
4%
|
| 2 | 11 |
2.3%
|
|
| 3 | 16 |
3.3%
|
|
| 4 | 22 |
4.6%
|
|
| 5 | 47 |
9.8%
|
|
| 6 | 51 |
10.6%
|
|
| 7 | 53 |
11%
|
|
| 8 | 57 |
11.9%
|
|
| 9 | 32 |
6.7%
|
|
| 10 | Very effective | 97 |
20.2%
|
| 11 | Don't know | 76 |
15.8%
|
| Sysmiss | 86 |