| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 934 |
3.8%
|
| 2 | Monthly | 1326 |
5.4%
|
| 3 | Yearly | 2182 |
8.9%
|
| 4 | Not all | 20184 |
82%
|
| Sysmiss | 534 |