Value | Category | Cases | |
---|---|---|---|
-9 | NIU (not in universe) | 2226 |
96.4%
|
1 | months | 1 |
0%
|
2 | years | 78 |
3.4%
|
98 | don't know | 4 |
0.2%
|
99 | other | 0 |
0%
|
9999995 | missing:impute | 0 |
0%
|
Sysmiss | 474 |