| value | category | Casos | |
|---|---|---|---|
| 1 | Month and year | 565 |
21.4%
|
| 2 | Month and age -y imp | 8 |
0.3%
|
| 3 | 12 |
0.5%
|
|
| 5 | Year - a, m imp | 378 |
14.3%
|
| 6 | Age - y, m imp | 163 |
6.2%
|
| 7 | Month - a, y imp | 1 |
0%
|
| 8 | None - all imp | 26 |
1%
|
| Sysmiss | 1491 |