| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 23 |
3.5%
|
| 2 | 5-6 days per week | 15 |
2.3%
|
| 3 | 3-4 days per week | 23 |
3.5%
|
| 4 | 1-2 days per week | 143 |
21.9%
|
| 5 | 1-3 days per month | 192 |
29.4%
|
| 6 | Less than once a month | 257 |
39.4%
|
| Sysmiss | 3205 |