| Value | Category | Cases | |
|---|---|---|---|
| 1 | never | 58 |
3%
|
| 2 | once a year or less frequent | 152 |
8%
|
| 3 | two or three times a year | 531 |
27.9%
|
| 4 | monthly or more often | 1163 |
61.1%
|
| Sysmiss | 1235 |