| Value | Category | Cases | |
|---|---|---|---|
| 1 | hour | 107 |
5.1%
|
| 2 | day | 169 |
8%
|
| 3 | week | 143 |
6.8%
|
| 4 | month | 1636 |
77.8%
|
| 5 | year | 47 |
2.2%
|
| Sysmiss | [.a] invalid code | 0 | |
| Sysmiss | 38506 |