| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 176858 |
35.4%
|
| 2 | A few times a year | 104639 |
21%
|
| 3 | About once a month | 73683 |
14.8%
|
| 4 | Several times a month | 79007 |
15.8%
|
| 5 | Several times a week | 64914 |
13%
|
| 7 | N/A | 4021 | |
| 8 | Invalid | 1406 | |
| 9 | Miss | 11430 |