| Value | Category | Cases | |
|---|---|---|---|
| 1 | Number of Hours | 1063 |
44.9%
|
| 2 | Never | 299 |
12.6%
|
| 3 | Do not know (enter 999) | 1004 |
42.4%
|
| -999999999 | missing | 1 | |
| Sysmiss | 6107 |