| Value | Category | Cases | |
|---|---|---|---|
| 1 | once a month | 16 |
30.2%
|
| 2 | 2-3 days a month | 10 |
18.9%
|
| 3 | about once a week | 1 |
1.9%
|
| 4 | 2-3 days a week | 6 |
11.3%
|
| 5 | 4-6 days a week | 2 |
3.8%
|
| 6 | every day | 5 |
9.4%
|
| 7 | not used in the past 30 days | 10 |
18.9%
|
| 8 | don't know | 3 |
5.7%
|
| Sysmiss | 38729 |