| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 417 |
13.6%
|
| 2 | 5-6 days per week | 109 |
3.6%
|
| 3 | 1-4 days per week | 504 |
16.5%
|
| 4 | 1-3 days per month | 908 |
29.7%
|
| 5 | less than once a month | 1113 |
36.4%
|
| 77 | 4 |
0.1%
|
|
| Sysmiss | 2378 |