| Value | Category | Cases | |
|---|---|---|---|
| 1 | Month and year | 11277 |
99.1%
|
| 2 | Month and age -y imp | 6 |
0.1%
|
| 3 | Year and age - m imp | 12 |
0.1%
|
| 5 | Year - a, m imp | 10 |
0.1%
|
| 6 | Age - y, m imp | 25 |
0.2%
|
| 7 | Month - a, y imp | 5 |
0%
|
| 8 | None - all imp | 42 |
0.4%
|