| Value | Category | Cases | |
|---|---|---|---|
| -3 | Not applicable | 578 |
47.6%
|
| -1 | Don't know | 12 |
1%
|
| 0 | 0 | 242 |
19.9%
|
| 1 | 1 | 186 |
15.3%
|
| 2 | 2 | 127 |
10.5%
|
| 3 | 3 | 29 |
2.4%
|
| 4 | 4 | 41 |
3.4%
|