| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 276 |
11.4%
|
| 2 | 5-6 days/week | 86 |
3.6%
|
| 3 | 3-4 days/week | 207 |
8.6%
|
| 4 | 1-2 days/week | 556 |
23%
|
| 5 | 1-3 days/month | 468 |
19.4%
|
| 6 | Less than once a month | 823 |
34.1%
|
| Sysmiss | 3159 |