| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Higher than usual | 181 |
22.8%
|
| 2 | 2. The same as usual | 394 |
49.7%
|
| 3 | 3. Less than usual | 206 |
26%
|
| 4 | 4. No income | 12 |
1.5%
|
| Sysmiss | 3152 |