| Value | Category | Cases | |
|---|---|---|---|
| 1 | Annual | 283 |
54.1%
|
| 2 | Monthly | 188 |
35.9%
|
| 3 | Weekly | 45 |
8.6%
|
| 4 | Daily | 3 |
0.6%
|
| 5 | Unknown | 4 |
0.8%
|
| Sysmiss | 3954 |