| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 27 |
6.3%
|
| 2 | Once in a year | 21 |
4.9%
|
| 3 | Once a term | 226 |
52.6%
|
| 4 | Once or more a month | 156 |
36.3%
|
| 5 | Missing | 0 |
0%
|