| Value | Category | Cases | |
|---|---|---|---|
| 1 | Full date known | 921 |
97.9%
|
| 2 | Day unknown | 2 |
0.2%
|
| 4 | Day and month unknown | 18 |
1.9%
|
| 8 | Unknown | 0 |
0%
|
| 9 | Missing | 0 |