| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 279 |
1.5%
|
| 2 | Seldom | 2853 |
15.8%
|
| 3 | Quite often | 9517 |
52.6%
|
| 4 | Very often | 5449 |
30.1%
|
| 7 | N/A | 371 | |
| 8 | Invalid | 8 | |
| 9 | Miss | 164 |