| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 483 |
3%
|
| 2 | Weekly | 1524 |
9.6%
|
| 3 | Monthly | 1407 |
8.8%
|
| 4 | Yearly | 315 |
2%
|
| 5 | Not at all | 12206 |
76.6%
|
| Sysmiss | 8877 |