| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 83 |
9.8%
|
| 2 | 5-6 days per week | 39 |
4.6%
|
| 3 | 1-4 days per week | 275 |
32.4%
|
| 4 | 1-3 days per month | 237 |
27.9%
|
| 5 | less than once a month | 206 |
24.3%
|
| 88 | Refused | 8 |
0.9%
|
| Sysmiss | 4358 |