| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 65 |
1.3%
|
| 2 | 12 years old | 1126 |
23.2%
|
| 3 | 13 years old | 1278 |
26.3%
|
| 4 | 14 years old | 1101 |
22.7%
|
| 5 | 15 years old | 877 |
18%
|
| 6 | 16 years old | 289 |
5.9%
|
| 7 | 17 years old or older | 123 |
2.5%
|
| Sysmiss | 43 |