| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 138 |
0.6%
|
| 2 | Monthly | 390 |
1.6%
|
| 3 | Yearly | 1942 |
8.1%
|
| 4 | Not all | 21627 |
89.7%
|
| Sysmiss | 392 |