| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 4595 |
23.2%
|
| 2 | 4-6 times | 1248 |
6.3%
|
| 3 | 2-3 times | 4791 |
24.1%
|
| 4 | Once a week | 5279 |
26.6%
|
| 5 | Never | 3697 |
18.6%
|
| Sysmiss | 236 |