| Value | Category | Cases | |
|---|---|---|---|
| -999999999 | 397 |
12.3%
|
|
| 1 | Yes | 552 |
17.1%
|
| 2 | No | 2219 |
68.7%
|
| 9 | Don't know | 62 |
1.9%
|
| Sysmiss | 2130 |