| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 339 |
15.6%
|
| 2 | 5-6 days per week | 143 |
6.6%
|
| 3 | 1-4 days per week | 712 |
32.8%
|
| 4 | 1-3 days per month | 490 |
22.6%
|
| 5 | less than once a month | 471 |
21.7%
|
| 88 | Refused | 15 |
0.7%
|
| Sysmiss | 3510 |