| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1258 |
80%
|
|
| 1 | 42 |
2.7%
|
|
| 2 | 98 |
6.2%
|
|
| 3 | 60 |
3.8%
|
|
| 4 | 50 |
3.2%
|
|
| 5 | 30 |
1.9%
|
|
| 6 | 18 |
1.1%
|
|
| 8 | 8 hours or more | 17 |
1.1%
|
| Sysmiss | 773 |