| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 298 |
13.5%
|
| 2 | About once a year or less | 542 |
24.5%
|
| 3 | About once every several months | 85 |
3.8%
|
| 4 | About once a month | 77 |
3.5%
|
| 5 | About once a week | 362 |
16.4%
|
| 6 | More than once a week | 835 |
37.8%
|
| 9 | Don't know | 11 |
0.5%
|