| Value | Category | Cases | |
|---|---|---|---|
| 1 | HOURS | 27 |
21.6%
|
| 2 | MINUTES | 24 |
19.2%
|
| 7 | DON’T KNOW | 30 |
24%
|
| 9 | REFUSED | 44 |
35.2%
|
| Sysmiss | 4300 |