| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 9 |
1.6%
|
| 2 | 5-6 days per week | 22 |
4%
|
| 3 | 1-4 days per week | 168 |
30.8%
|
| 4 | 1-3 days per month | 151 |
27.7%
|
| 5 | less than once a month | 192 |
35.2%
|
| 88 | 4 |
0.7%
|
|
| Sysmiss | 367 |