| Value | Category | Cases | |
|---|---|---|---|
| 1 | month and year | 6739 |
62.6%
|
| 2 | month and age -y imp | 43 |
0.4%
|
| 3 | year and age - m imp | 0 |
0%
|
| 5 | year - a, m imp | 2281 |
21.2%
|
| 6 | age - y, m imp | 1657 |
15.4%
|
| 7 | month - a, y imp | 1 |
0%
|
| 8 | none - all imp | 42 |
0.4%
|
| Sysmiss | 5222 |