| Value | Category | Cases | |
|---|---|---|---|
| 1 | Month and year | 4042 |
98.3%
|
| 2 | Month and age | 0 |
0%
|
| 3 | Year and age | 48 |
1.2%
|
| 4 | Year | 0 |
0%
|
| 5 | 0 |
0%
|
|
| 6 | Age | 21 |
0.5%
|
| 7 | Month | 0 |
0%
|
| 8 | None | 0 |
0%
|
| Sysmiss | 4946 |