| Value | Category | Cases | |
|---|---|---|---|
| 999997 | refusal | 0 |
0%
|
| 999998 | don't know | 0 |
0%
|
| 999999 | not applicable | 73 |
100%
|
| 9999995 | missing:impute | 0 |
0%
|
| Sysmiss | 5416 |