| Value | Category | Cases | |
|---|---|---|---|
| 1 | HOURS | 46 |
30.5%
|
| 2 | MINUTES | 88 |
58.3%
|
| 7 | DON'T KNOW | 17 |
11.3%
|
| 9 | REFUSED | 0 |
0%
|
| Sysmiss | 8879 |