| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 3260 |
4.5%
|
| 2 | Sometimes | 3051 |
4.2%
|
| 3 | Often | 1323 |
1.8%
|
| 4 | Every day | 2323 |
3.2%
|
| 8 | Not applicable | 62256 |
85.7%
|
| 9 | Unspecified | 389 |
0.5%
|