| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 0 |
0%
|
| 2 | Every two weeks | 0 |
0%
|
| 3 | Monthly | 99 |
34.7%
|
| 4 | Seasonally | 79 |
27.7%
|
| 5 | Once a year | 67 |
23.5%
|
| 6 | Other | 40 |
14%
|
| Sysmiss | 1578 |