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