| Value | Category | Cases | |
|---|---|---|---|
| 1 | Both | 2 |
0.6%
|
| 2 | No | 6 |
1.9%
|
| 3 | Self | 15 |
4.7%
|
| 4 | Wage | 4 |
1.2%
|
| Missing value | 295 |
91.6%
|