| Value | Category | Cases | |
|---|---|---|---|
| 1 | no time | 1024 |
26.1%
|
| 2 | less than 1 hour | 943 |
24%
|
| 3 | 1-2 hours | 797 |
20.3%
|
| 4 | more than 2 but less than 4 hours | 516 |
13.2%
|
| 5 | 4 or more hours | 641 |
16.3%
|
| 9 | omitted | 0 |