Age range | Frequency (n) | Percentage % |
Less than 1 year | 8 | 15.38 |
1 year to 5 years | 12 | 23.08 |
6 to 10 years | 28 | 53.84 |
11 to 15 years | 4 | 7.70 |
Total | 52 | 100 |