| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 168 |
9.7%
|
| 2 | 5-6 days per week | 103 |
6%
|
| 3 | 1-4 days per week | 380 |
22%
|
| 4 | 1-3 days per month | 508 |
29.4%
|
| 5 | less than once a month | 496 |
28.7%
|
| 6 | 2 |
0.1%
|
|
| 88 | 69 |
4%
|
|
| Sysmiss | 2303 |