| Value | Category | Cases | |
|---|---|---|---|
| 1 | HOURS | 31 |
25.4%
|
| 2 | MINUTES | 87 |
71.3%
|
| 7 | DON'T KNOW | 3 |
2.5%
|
| 9 | REFUSED | 1 |
0.8%
|
| Sysmiss | 8036 |