| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 550448 |
93.1%
|
| 2 | No | 30088 |
5.1%
|
| 9 | Don't know | 10535 |
1.8%
|
| 99 | 38 |
0%
|
|
| Sysmiss | 721906 |