| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 0 |
0%
|
| 2 | Weekly | 0 |
0%
|
| 3 | Twice a month | 0 |
0%
|
| 4 | Monthly | 4 |
28.6%
|
| 5 | Less often | 10 |
71.4%
|
| 99 | Not specified | 0 |
0%
|
| Sysmiss | 3984 |