| Value | Category | Cases | |
|---|---|---|---|
| 1 | Often | 2897 |
4.1%
|
| 2 | Sometimes | 2697 |
3.8%
|
| 3 | Never | 2585 |
3.6%
|
| 8 | Not applicable | 62366 |
87.7%
|
| 9 | Unspecified | 592 |
0.8%
|