| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1854 |
95.2%
|
| 2 | Sometimes | 66 |
3.4%
|
| 3 | Always | 24 |
1.2%
|
| 7 | 1 |
0.1%
|
|
| 8 | 2 |
0.1%
|
|
| Sysmiss | 45 |