| Value | Category | Cases | |
|---|---|---|---|
| 1 | Month and year | 4645 |
65.4%
|
| 2 | Month and age -y imp | 1 |
0%
|
| 5 | Year - a, m imp | 1843 |
26%
|
| 6 | Age - y, m imp | 605 |
8.5%
|
| 7 | Month - a, y imp | 1 |
0%
|
| 8 | None - all imp | 7 |
0.1%
|
| Sysmiss | 3268 |