| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 2 |
1.1%
|
| 2 | Fortnightly | 3 |
1.6%
|
| 3 | Monthly | 14 |
7.7%
|
| 4 | Seasonally | 18 |
9.8%
|
| 5 | Once a year | 36 |
19.7%
|
| 6 | Irregularly/occasionally | 110 |
60.1%
|
| Sysmiss | 5967 |