| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every day | 61 |
8.5%
|
| 2 | Once a week | 69 |
9.7%
|
| 3 | Every other week | 125 |
17.5%
|
| 4 | Once a month | 86 |
12%
|
| 5 | Every three months | 181 |
25.3%
|
| 6 | Every six months | 125 |
17.5%
|
| 7 | Once a year | 68 |
9.5%
|
| 11 | .A | 4 | |
| Sysmiss | 621 |