| Value | Category | Cases | |
|---|---|---|---|
| 1 | Days | 149 |
31%
|
| 2 | Months | 162 |
33.8%
|
| 3 | Years | 169 |
35.2%
|
| 9 | Special answers | 0 |
0%
|
| Sysmiss | 9890 |