| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 8 |
0.8%
|
| 2 | 12 years old | 15 |
1.6%
|
| 3 | 13 years old | 116 |
12.3%
|
| 4 | 14 years old | 259 |
27.5%
|
| 5 | 15 years old | 262 |
27.8%
|
| 6 | 16 years old | 209 |
22.2%
|
| 7 | 17 years old or older | 74 |
7.8%
|
| Sysmiss | 16 |