| Value | Category | Cases | |
|---|---|---|---|
| -888 | Other: specify | 0 |
0%
|
| 1 | Daily | 0 |
0%
|
| 2 | Once a week | 0 |
0%
|
| 3 | Twice a month | 3 |
6.1%
|
| 4 | Monthly | 25 |
51%
|
| 5 | As necessary | 8 |
16.3%
|
| 6 | Not available | 13 |
26.5%
|
| Sysmiss | 82 |