| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 193 |
0.8%
|
| 2 | Monthly | 987 |
4.2%
|
| 3 | Yearly | 4682 |
19.7%
|
| 4 | Not all | 17892 |
75.3%
|
| Sysmiss | 1058 |