| value | category | cases | |
|---|---|---|---|
| 1 | Month and year | 347 |
93.5%
|
| 2 | Month and age | 0 |
0%
|
| 3 | Year and age | 20 |
5.4%
|
| 4 | Year | 0 |
0%
|
| 5 | 0 |
0%
|
|
| 6 | Age | 4 |
1.1%
|
| 7 | Month | 0 |
0%
|
| 8 | None | 0 |
0%
|
| Sysmiss | 8726 |