| Value | Category | Cases | |
|---|---|---|---|
| 1 | Below 10 years | 48 |
1.7%
|
| 2 | 10-12 years | 31 |
1.1%
|
| 3 | 13-15 years | 163 |
5.8%
|
| 4 | 16-18 years | 501 |
17.9%
|
| 5 | 19-21 years | 773 |
27.6%
|
| 6 | Above 21 years | 1282 |
45.8%
|
| Sysmiss | 15153 |