| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 1 |
0%
|
| -7 | DON'T KNOW | 18 |
0.6%
|
| 1 | FILTERED | 2976 |
96%
|
| 2 | NON-FILTERED | 106 |
3.4%
|
| Sysmiss | 15365 |