| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 878 |
43.5%
|
| 2 | Once a year | 171 |
8.5%
|
| 3 | Once a term | 393 |
19.5%
|
| 4 | Once a month | 232 |
11.5%
|
| 5 | Once a week | 223 |
11.1%
|
| 98 | Other | 121 |
6%
|
| Sysmiss | 1309 |