| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, for pay | 111 |
0.9%
|
| 2 | Yes, unpaid | 288 |
2.3%
|
| 3 | No | 11905 |
95.6%
|
| 9 | Missing | 154 |
1.2%
|
| Sysmiss | 18319 |