| Value | Category | Cases | |
|---|---|---|---|
| 1 | 18–27 | 727 |
28.7%
|
| 2 | 28–37 | 709 |
28%
|
| 3 | 38–47 | 486 |
19.2%
|
| 4 | 48–57 | 327 |
12.9%
|
| 5 | 58–67 | 135 |
5.3%
|
| 6 | 68–77 | 57 |
2.2%
|
| 7 | 78–87 | 14 |
0.6%
|
| 8 | 88+ | 1 |
0%
|
| Missing value | 78 |
3.1%
|