| Value | Category | Cases | |
|---|---|---|---|
| 1 | Month and year | 1005 |
97.5%
|
| 2 | From calendar | 3 |
0.3%
|
| 5 | Year | 22 |
2.1%
|
| 7 | Month | 0 |
0%
|
| 8 | None | 1 |
0.1%
|
| Sysmiss | 6167 |