| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 108 |
18.1%
|
| 1 | Once a month or less | 80 |
13.4%
|
| 2 | Several times a month | 85 |
14.2%
|
| 3 | Several times a week | 145 |
24.2%
|
| 4 | Daily | 180 |
30.1%
|
| Sysmiss | 438 |