| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 19 |
11.7%
|
| 2 | 12 years old | 28 |
17.2%
|
| 3 | 13 years old | 20 |
12.3%
|
| 4 | 14 years old | 27 |
16.6%
|
| 5 | 15 years old | 21 |
12.9%
|
| 6 | 16 years old | 21 |
12.9%
|
| 7 | 17 years old | 18 |
11%
|
| 8 | 18 years old or older | 9 |
5.5%
|
| Sysmiss | 1 |