------------------------+----------+----------+----------+----------
| 20 to 25 | 30 to 40 | 45 to 55 | Above 55
------------------------+----------+----------+----------+----------
|_Per cent_|_Per cent_|_Per cent_|_Per cent_
Males (27) | 11 | 15 | 41 | 33
Females (25) | 16 | 24 | 44 | 16
Mean, both sexes | 13.5 | 19 | 42.5 | 25
------------------------+----------+----------+----------+----------