Degree of loss | Effective | Percentage (%) |
Mild deafness | 67 | 18.31 |
Average deafness | 179 | 48.91 |
Severe deafness | 74 | 20.22 |
Deep deafness | 42 | 11.47 |
cophosis | 4 | 01.09 |
Total | 366 | 100.00 |