| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 1 |
0.3%
|
| 2 | 5 |
1.7%
|
|
| 3 | 9 |
3.1%
|
|
| 4 | 16 |
5.4%
|
|
| 5 | 17 |
5.8%
|
|
| 6 | 29 |
9.8%
|
|
| 7 | 24 |
8.1%
|
|
| 8 | 17 |
5.8%
|
|
| 9 | 15 |
5.1%
|
|
| 10 | Very effective | 13 |
4.4%
|
| 11 | 149 |
50.5%
|
|
| Sysmiss | 12 |