| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 19 |
0.4%
|
| 2 | 12 years old | 65 |
1.3%
|
| 3 | 13 years old | 813 |
16%
|
| 4 | 14 years old | 1442 |
28.3%
|
| 5 | 15 years old | 1527 |
30%
|
| 6 | 16 years old | 856 |
16.8%
|
| 7 | 17 years old or older | 375 |
7.4%
|
| Sysmiss | 58 |