Age groups | Normal | Mild HL | Moderate HL | Severe HL | Profound HL | Total |
10 - 19 yrs | 81 | 41 | 40 | 15 | 21 | 198 |
20 - 39 yrs | 177 | 116 | 98 | 51 | 26 | 468 |
40 - 59 yrs | 180 | 208 | 119 | 65 | 22 | 594 |
60 & above | 8 | 92 | 153 | 40 | 22 | 315 |