| Value | Category | Cases | |
|---|---|---|---|
| 1 | month and year | 5436 |
51.2%
|
| 2 | month and age -y imp | 60 |
0.6%
|
| 3 | year and age - m imp | 1055 |
9.9%
|
| 4 | 0 |
0%
|
|
| 5 | year - a, m imp | 67 |
0.6%
|
| 6 | age - y, m imp | 124 |
1.2%
|
| 7 | month - a, y imp | 43 |
0.4%
|
| 8 | none - all imp | 615 |
5.8%
|
| 9 | all present but inc | 3222 |
30.3%
|
| Sysmiss | 2750 |