| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 19 |
3.1%
|
| 2 | Weekly | 11 |
1.8%
|
| 3 | Twice a month | 7 |
1.1%
|
| 4 | Monthly | 557 |
91.5%
|
| 5 | Less often | 15 |
2.5%
|
| 99 | Not specified | 0 |
0%
|
| Sysmiss | 3389 |