| Value | Category | Cases | |
|---|---|---|---|
| 1 | always | 258 |
10.9%
|
| 2 | sometimes | 42 |
1.8%
|
| 3 | never | 405 |
17.1%
|
| 9 | not applicable | 1628 |
68.9%
|
| 9999995 | missing:impute | 31 |
1.3%
|
| Sysmiss | 6 |