| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 40 hours | 496 |
14.4%
|
| 2 | 40 hours | 474 |
13.8%
|
| 3 | More than 40 hours | 2468 |
71.7%
|
| 40 | 1 |
0%
|
|
| 50 | 1 |
0%
|
|
| 60 | 1 |
0%
|
|
| Sysmiss | 9874 |