| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 1 | Contributes a lot | 247 |
20.6%
|
| 2 | Helps a bit | 246 |
20.5%
|
| 3 | Does not contribute at all | 116 |
9.7%
|
| 7 | Not applicable | 425 |
35.4%
|
| 9 | Don't know | 165 |
13.8%
|
| 98 | Refused | 0 |
0%
|