| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 - 2 hours | 30 |
56.6%
|
| 2 | 2.1 - 4 hours | 15 |
28.3%
|
| 3 | 4.1 - 6 hours | 4 |
7.5%
|
| 4 | 6.1 - 8 hours | 4 |
7.5%
|
| 5 | 8.1 - 10 hours | 0 |
0%
|
| 6 | more than 10 hours | 0 |
0%
|
| Sysmiss | 393 |