| Value | Category | Cases | |
|---|---|---|---|
| 1 | month and year | 2368 |
78.9%
|
| 2 | from calendar | 58 |
1.9%
|
| 5 | year | 574 |
19.1%
|
| 7 | month | 0 |
0%
|
| 8 | none | 0 |
0%
|
| Sysmiss | 9915 |