| Value | Category | Cases | |
|---|---|---|---|
| -888 | Other specify | 0 |
0%
|
| 1 | Daily | 0 |
0%
|
| 2 | Once a week | 2 |
3.2%
|
| 3 | Twice a month | 4 |
6.5%
|
| 4 | Monthly | 19 |
30.6%
|
| 5 | As necessary | 37 |
59.7%
|
| Sysmiss | 59 |