| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 31 |
2.6%
|
| 2 | 5-6 days per week | 14 |
1.2%
|
| 3 | 3-4 days per week | 21 |
1.7%
|
| 4 | 1-2 days per week | 80 |
6.6%
|
| 5 | 1-3 days per month | 281 |
23.2%
|
| 6 | Less than once a month | 783 |
64.7%
|
| Sysmiss | 1139 |