| value | category | cases | |
|---|---|---|---|
| 1 | Month and year | 21 |
67.7%
|
| 2 | Month and age -y imp | 0 |
0%
|
| 3 | Year and age - m imp | 0 |
0%
|
| 4 | Y & age - y ignored | 6 |
19.4%
|
| 5 | Year - a, m imp | 3 |
9.7%
|
| 6 | Age - y, m imp | 0 |
0%
|
| 7 | Month - a, y imp | 0 |
0%
|
| 8 | None - all imp | 1 |
3.2%
|
| Sysmiss | 2309 |