| Value | Category | Cases | |
|---|---|---|---|
| 1 | Higher than usual | 41 |
13.6%
|
| 2 | The same as usual | 103 |
34.1%
|
| 3 | Less than usual | 116 |
38.4%
|
| 4 | No income | 42 |
13.9%
|
| Sysmiss | 1820 |