| Value | Category | Cases | |
|---|---|---|---|
| 1 | month and year | 6126 |
88.6%
|
| 5 | year - m imp, a calc | 557 |
8.1%
|
| 6 | 0 |
0%
|
|
| 7 | month - date placed | 40 |
0.6%
|
| 8 | none - date placed | 195 |
2.8%
|
| 9 | from calendar | 0 |
0%
|
| Sysmiss | 8028 |