| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 196 |
18.9%
|
| 1 | Once or week or less often | 201 |
19.4%
|
| 2 | Several hours a week | 257 |
24.8%
|
| 3 | 1 to 2 hours per day | 219 |
21.1%
|
| 4 | 3 or more hours per day | 163 |
15.7%
|