| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 122 |
5%
|
| 2 | About once a year or less | 111 |
4.6%
|
| 3 | About once every several months | 219 |
9%
|
| 4 | About once a month | 205 |
8.4%
|
| 5 | About once a week | 641 |
26.4%
|
| 6 | More than once a week | 1086 |
44.7%
|
| 9 | Don't know | 44 |
1.8%
|