| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
2.1%
|
| 2 | 6 |
3.1%
|
|
| 3 | 16 |
8.4%
|
|
| 4 | 15 |
7.9%
|
|
| 5 | 29 |
15.2%
|
|
| 6 | 18 |
9.4%
|
|
| 7 | 31 |
16.2%
|
|
| 8 | 21 |
11%
|
|
| 9 | 28 |
14.7%
|
|
| 10 | Very effective | 23 |
12%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 69 |