| Value | Category | Cases | |
|---|---|---|---|
| 1 | No, never | 10 |
0.6%
|
| 2 | Yes, but incomplete | 257 |
16.3%
|
| 3 | Yes, complete | 1107 |
70.1%
|
| 8 | Unknown | 205 |
13%
|
| Sysmiss | 2 |