| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 175 |
16.9%
|
| 1 | Once or week or less often | 161 |
15.5%
|
| 2 | Several hours a week | 246 |
23.7%
|
| 3 | 1 to 2 hours per day | 263 |
25.4%
|
| 4 | 3 or more hours per day | 191 |
18.4%
|