| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 4611 |
56.1%
|
| 1 | Rarely | 932 |
11.3%
|
| 2 | Sometimes | 1702 |
20.7%
|
| 3 | Often | 975 |
11.9%
|
| 98 | Don't know | 0 |
0%
|
| 99 | Refuse | 0 |
0%
|
| c | 1 |
0%
|
|
| d | 2 |
0%
|