| Value | Category | Cases | |
|---|---|---|---|
| 1 | month and year | 5130 |
79%
|
| 2 | from calendar | 103 |
1.6%
|
| 5 | year | 1264 |
19.5%
|
| 7 | month | 0 |
0%
|
| 8 | none | 0 |
0%
|
| Sysmiss | 32221 |