| Value | Category | Cases | |
|---|---|---|---|
| 1 | Often | 3505 |
4.9%
|
| 2 | Sometimes | 2172 |
3.1%
|
| 3 | Never | 2490 |
3.5%
|
| 8 | Not applicable | 62366 |
87.7%
|
| 9 | Unspecified | 604 |
0.8%
|