Age groups | Total number of patients | Number of malignant patients | Percentage |
11 - 20 | 9 | 0 | 0% |
21 - 30 | 18 | 4 | 22.2% |
31 - 40 | 64 | 10 | 15.6% |
41 - 50 | 48 | 5 | 10.41% |
51 - 60 | 31 | 4 | 12.9% |
61 - 70 | 18 | 1 | 5.55% |