| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 419 |
17.8%
|
| 1 | Once a week | 394 |
16.8%
|
| 2 | Twice a week | 575 |
24.4%
|
| 3 | Three times a week | 429 |
18.2%
|
| 4 | Four times a week | 231 |
9.8%
|
| 5 | Five times a week | 263 |
11.2%
|
| 9 | Not applicable | 41 |
1.7%
|
| Sysmiss | 2303 |