| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Yes | 4172660 |
96.1%
|
| 2 | 2. No | 138872 |
3.2%
|
| 9 | 9. Unspecified | 32075 |
0.7%
|
| Sysmiss | 74987 |