| Value | Category | Cases | |
|---|---|---|---|
| 1 | Below 30 | 73 |
14.5%
|
| 2 | 30-40 years old | 278 |
55.2%
|
| 3 | 41-50 years old | 77 |
15.3%
|
| 4 | Over 50 years old | 76 |
15.1%
|