| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 4 |
3.6%
|
| 2 | Fortnightly | 2 |
1.8%
|
| 3 | Monthly | 6 |
5.4%
|
| 4 | Seasonally | 3 |
2.7%
|
| 5 | Once a year | 13 |
11.6%
|
| 6 | Irregularly/occasionally | 84 |
75%
|
| Sysmiss | 6038 |