| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. yes | 2599145 |
44.5%
|
| 2 | 2. no | 2048004 |
35.1%
|
| 8 | 8. not applicable | 1154583 |
19.8%
|
| 9 | 9. unspecified | 33023 |
0.6%
|
| Sysmiss | 1612805 |