| Value | Category | Cases | |
|---|---|---|---|
| -999 | Don't know | 0 |
0%
|
| -888 | Not available | 1 |
0.1%
|
| 1 | Rarely (1 – 2 days) | 829 |
53.1%
|
| 2 | Sometimes (3 – 10 days) | 704 |
45.1%
|
| 3 | Often (More than 10 days) | 26 |
1.7%
|
| Sysmiss | 4419 |