| Value | Category | Cases | |
|---|---|---|---|
| 1 | hour | 0 |
0%
|
| 2 | day | 0 |
0%
|
| 3 | week | 0 |
0%
|
| 4 | month | 1 |
50%
|
| 5 | quarterly | 0 |
0%
|
| 6 | year | 0 |
0%
|
| 7 | other | 1 |
50%
|
| 88 | Doesn't Know | 0 |
0%
|
| Sysmiss | 1960 |