| Value | Category | Cases | |
|---|---|---|---|
| -99 | 20 |
6.7%
|
|
| 1 | Never | 137 |
45.7%
|
| 2 | Less than once a year | 32 |
10.7%
|
| 3 | Once a year to a few times a year | 43 |
14.3%
|
| 4 | Less than once a month | 25 |
8.3%
|
| 5 | At least once a month | 29 |
9.7%
|
| 6 | At least once a week | 14 |
4.7%
|
| Sysmiss | 75 |