| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 0 |
0%
|
| 2 | Every two weeks | 0 |
0%
|
| 3 | Monthly | 31 |
36.5%
|
| 4 | Seasonally | 20 |
23.5%
|
| 5 | Once a year | 20 |
23.5%
|
| 6 | Other | 14 |
16.5%
|
| Sysmiss | 1778 |