| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 559 |
68.5%
|
| 2 | Only once | 60 |
7.4%
|
| 3 | Monthly | 75 |
9.2%
|
| 4 | Fortnightly | 18 |
2.2%
|
| 5 | Weekly or more often | 50 |
6.1%
|
| 6 | Rarely | 54 |
6.6%
|
| Sysmiss | 2189 |