| Value | Category | Cases | |
|---|---|---|---|
| -1 | True missing | 9 |
0.2%
|
| 0 | Never | 1543 |
28.2%
|
| 1 | Rarely | 543 |
9.9%
|
| 2 | sometimes | 1023 |
18.7%
|
| 3 | often | 2314 |
42.2%
|
| 99 | Refused to answer | 47 |
0.9%
|