| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | Never | 257 |
21.4%
|
| 1 | Less than once a month | 59 |
4.9%
|
| 2 | A few times a month | 122 |
10.2%
|
| 3 | A few times a week | 330 |
27.5%
|
| 4 | Every day | 429 |
35.8%
|
| 9 | Don't know | 2 |
0.2%
|