| Value | Category | Cases | |
|---|---|---|---|
| -9 | NIU (not in universe) | 1604 |
92.4%
|
| -8 | don't know | 0 |
0%
|
| 1 | 29 |
1.7%
|
|
| 2 | 103 |
5.9%
|
|
| 9999995 | missing:impute | 0 |
0%
|