| Value | Category | Cases | |
|---|---|---|---|
| -99 | 9 |
1.9%
|
|
| 1 | Never | 169 |
36.4%
|
| 2 | Less than once a year | 48 |
10.3%
|
| 3 | Once a year to a few times a year | 119 |
25.6%
|
| 4 | Less than once a month | 24 |
5.2%
|
| 5 | At least once a month | 31 |
6.7%
|
| 6 | At least once a week | 20 |
4.3%
|
| Sysmiss | 44 |
9.5%
|