| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 452 |
43.6%
|
| 2 | Once a year or less | 118 |
11.4%
|
| 3 | Every half a year | 124 |
12%
|
| 4 | Once every 3 months | 163 |
15.7%
|
| 5 | Every month | 115 |
11.1%
|
| 9 | Don’t know | 64 |
6.2%
|