| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 536 |
11.6%
|
| 2 | Weekly | 517 |
11.2%
|
| 3 | Every two weeks | 496 |
10.8%
|
| 4 | Monthly | 1709 |
37.1%
|
| 5 | As need arises | 1346 |
29.2%
|
| Sysmiss | 62338 |