| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 31 |
6.1%
|
| 2 | 23 |
4.5%
|
|
| 3 | 52 |
10.2%
|
|
| 4 | 65 |
12.7%
|
|
| 5 | 81 |
15.9%
|
|
| 6 | 80 |
15.7%
|
|
| 7 | 56 |
11%
|
|
| 8 | 40 |
7.8%
|
|
| 9 | 36 |
7%
|
|
| 10 | Very effective | 47 |
9.2%
|
| 11 | Don't know | 143 | |
| Sysmiss | 65 |