| Value | Category | Cases | |
|---|---|---|---|
| 1 | Month and year | 716 |
77.8%
|
| 2 | Month and age -y imp | 0 |
0%
|
| 3 | Year and age - m imp | 97 |
10.5%
|
| 4 | Y & age - y ignored | 52 |
5.7%
|
| 5 | Year - a, m imp | 50 |
5.4%
|
| 6 | Age - y, m imp | 2 |
0.2%
|
| 7 | Month - a, y imp | 0 |
0%
|
| 8 | None - all imp | 3 |
0.3%
|