| Value | Category | Cases | |
|---|---|---|---|
| 1 | Month and year - information complete | 2977 |
99.5%
|
| 5 | Year - month imputed, age calculated | 4 |
0.1%
|
| 7 | Month - date placed | 8 |
0.3%
|
| 8 | None - date placed | 4 |
0.1%
|
| 9 | From calendar | 0 |
0%
|
| Sysmiss | 2272 |