| Value | Category | Cases | |
|---|---|---|---|
| 1 | day | 127 |
1.3%
|
| 2 | week | 94 |
1%
|
| 3 | month | 6233 |
65.7%
|
| 4 | not periodic | 3035 |
32%
|
| Sysmiss | 14 |