| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 5 |
0.1%
|
| 2 | 12 years old | 53 |
1.5%
|
| 3 | 13 years old | 280 |
7.7%
|
| 4 | 14 years old | 452 |
12.5%
|
| 5 | 15 years old | 533 |
14.7%
|
| 6 | 16 years old | 601 |
16.6%
|
| 7 | 17 years old | 752 |
20.7%
|
| 8 | 18 years old or older | 953 |
26.3%
|
| Sysmiss | 51 |