| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Yes | 469945 |
10.8%
|
| 2 | 2. No | 3681512 |
84.9%
|
| 3 | 3. Do not know | 18738 |
0.4%
|
| 9 | 9. Unspecified | 167502 |
3.9%
|
| Sysmiss | 80897 |