| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 8 |
3.1%
|
| 2 | 5-6 days per week | 7 |
2.7%
|
| 3 | 3-4 days per week | 3 |
1.2%
|
| 4 | 1-2 days per week | 59 |
22.8%
|
| 5 | 1-3 days per month | 78 |
30.1%
|
| 6 | Less than once a month | 104 |
40.2%
|
| Sysmiss | 1640 |