| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 30 |
1.2%
|
| 2 | 5-6 days per week | 17 |
0.7%
|
| 3 | 3-4 days per week | 56 |
2.2%
|
| 4 | 1-2 days per week | 143 |
5.7%
|
| 5 | 1-3 days per month | 341 |
13.7%
|
| 6 | Less than once a month | 1910 |
76.5%
|
| Sysmiss | 1707 |