| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 158 |
0.6%
|
| 2 | Monthly | 799 |
3.2%
|
| 3 | Yearly | 3479 |
14.1%
|
| 4 | Not all | 20190 |
82%
|
| Sysmiss | 534 |