| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 12 |
1.3%
|
| 2 | 12 years old | 116 |
12.8%
|
| 3 | 13 years old | 126 |
14%
|
| 4 | 14 years old | 174 |
19.3%
|
| 5 | 15 years old | 134 |
14.8%
|
| 6 | 16 years old | 120 |
13.3%
|
| 7 | 17 years old | 147 |
16.3%
|
| 8 | 18 years or older | 74 |
8.2%
|
| Sysmiss | 16 |