| Value | Category | Cases | |
|---|---|---|---|
| 1 | Older than 10 years old | 31 |
29.2%
|
| 2 | 5 to 10 years old | 26 |
24.5%
|
| 3 | Younger than 5 years old | 49 |
46.2%
|
| Sysmiss | 894 |