| Value | Category | Cases | |
|---|---|---|---|
| 1 | Day | 13 |
28.9%
|
| 2 | Month | 19 |
42.2%
|
| 3 | Year | 13 |
28.9%
|
| 9 | Missing | 0 |
0%
|
| Sysmiss | 1264 |