| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 hour | 327 |
9.8%
|
| 2 | 2 hours | 1508 |
45.3%
|
| 3 | 3 hours | 640 |
19.2%
|
| 4 | 4+ hours | 852 |
25.6%
|