| Value | Category | Cases | |
|---|---|---|---|
| 1 | Month and year | 1919 |
97%
|
| 5 | Year - m imp, a calc | 56 |
2.8%
|
| 6 | 0 |
0%
|
|
| 7 | Month - date placed | 0 |
0%
|
| 8 | None - date placed | 3 |
0.2%
|