Table 1.

Age of subjects

Age range (years)	Number	Percentage
6–10	135	18.1
11–15	143	19.1
16–20	133	17.0
21–25	68	9.1
26–30	56	7.5
31–35	61	8.2
36–40	40	5.4
41+	111	14.9
Total	747	100