| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 402 |
38.8%
|
| 2 | Once a year or less | 181 |
17.5%
|
| 3 | Every half a year | 140 |
13.5%
|
| 4 | Once every 3 months | 181 |
17.5%
|
| 5 | Every month | 104 |
10%
|
| 9 | Don’t know | 28 |
2.7%
|