| Value | Category | Cases | |
|---|---|---|---|
| 1 | daily | 28 |
0.6%
|
| 2 | weekly | 11 |
0.2%
|
| 3 | monthly | 171 |
3.5%
|
| 4 | every 3 months | 26 |
0.5%
|
| 5 | annualy | 20 |
0.4%
|
| 6 | none | 4575 |
94.7%
|
| Sysmiss | 21122 |