| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not applicable | 0 |
0%
|
| 1 | Month and year | 30837 |
97.5%
|
| 2 | Month and age -y imp | 1 |
0%
|
| 3 | Year and age - m imp | 529 |
1.7%
|
| 4 | Y & age - y ignored | 0 |
0%
|
| 5 | Year - a, m imp | 239 |
0.8%
|
| 6 | Age - y, m imp | 0 |
0%
|
| 7 | Month - a, y imp | 0 |
0%
|
| 8 | None - all imp | 34 |
0.1%
|