| Value | Category | Cases | |
|---|---|---|---|
| 1 | 5 years old or younger | 141 |
18%
|
| 2 | 6 years old | 416 |
53.1%
|
| 3 | 7 years old | 221 |
28.2%
|
| 4 | 8 years old or older | 6 |
0.8%
|
| Sysmiss | 216 |