Age Male Female Summary Frequent (%)
11.00˜ 14 36 50 9.98
12.00˜ 37 89 126 25.15
13.00˜ 47 90 137 27.35
14.00˜ 33 46 79 15.77
15.00˜ 22 29 51 10.18
16.00˜ 10 20 30 5.99
17.00˜ 4 10 14 2.79
18.00˜ 1 7 8 1.60
19.00˜20.00 0 6 6 1.20
Summary 168 333 501 100.00
Table 1: Age and sex distribution (Han).