| Value | Category | Cases | |
|---|---|---|---|
| 0 | option not selected | 2543 |
84%
|
| 1 | other government source | 378 |
12.5%
|
| 98 | don't know | 98 |
3.2%
|
| 99 | refused | 10 |
0.3%
|
| Sysmiss | 1876 |