| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
0.4%
|
|
| 1 | Daily | 12 |
4.9%
|
| 2 | 5-6 days per week | 14 |
5.8%
|
| 3 | 3-4 days per week | 11 |
4.5%
|
| 4 | 1-2 days per week | 89 |
36.6%
|
| 5 | 1-3 days per month | 34 |
14%
|
| 6 | Less than once a month | 71 |
29.2%
|
| 88 | refused | 11 |
4.5%
|
| Sysmiss | 912 |