| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 10 |
0.2%
|
| 2 | 12 years | 206 |
4.5%
|
| 3 | 13 years old | 1091 |
23.6%
|
| 4 | 14 years old | 1228 |
26.5%
|
| 5 | 15 years old | 1163 |
25.1%
|
| 6 | 16 years old | 813 |
17.6%
|
| 7 | 17 years old or older | 115 |
2.5%
|
| Sysmiss | 46 |