| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
1.3%
|
| 2 | 4 |
1.3%
|
|
| 3 | 11 |
3.7%
|
|
| 4 | 8 |
2.7%
|
|
| 5 | 19 |
6.3%
|
|
| 6 | 30 |
10%
|
|
| 7 | 27 |
9%
|
|
| 8 | 28 |
9.3%
|
|
| 9 | 12 |
4%
|
|
| 10 | Very effective | 20 |
6.7%
|
| 11 | 137 |
45.7%
|
|
| Sysmiss | 7 |