| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 26 |
4.9%
|
| 2 | Less than once a year | 65 |
12.4%
|
| 3 | Once a year to a few times a year | 239 |
45.4%
|
| 4 | Less than once a month | 57 |
10.8%
|
| 5 | At least once a month | 98 |
18.6%
|
| 6 | At least once a week | 41 |
7.8%
|
| -99 | 10 | ||
| Sysmiss | 44 |