| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. yes | 4576 |
1.1%
|
| 2 | 2. no | 426861 |
98.7%
|
| 3 | 3. don't know | 32 |
0%
|
| 9 | 9. unspecified | 1197 |
0.3%
|
| Sysmiss | 7014894 |