| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 119 |
0.5%
|
| 2 | Monthly | 367 |
1.5%
|
| 3 | Yearly | 1615 |
6.8%
|
| 4 | Not all | 21653 |
91.2%
|
| Sysmiss | 1058 |