Table 1.

Age and sex distribution of the whole studied population.

Groups (years)	Males	Females	Total
4.00–4.99	30	30	60
5.00–5.99	30	30	60
6.00–6.99	30	30	60
7.00–7.99	30	30	60
8.00–8.99	44	44	88
9.00–9.99	39	41	80
10.00–10.99	36	36	72
11.00–11.99	34	31	65
12.00–12.99	31	36	67
13.00–13.99	32	31	63
14.00–14.99	32	33	65
15.00–15.99	32	31	63
16.00–16.99	20	20	40
17.00–17.99	20	20	40
18.00–18.99	20	20	40
19.00–19.99	20	20	40
20.00–20.99	20	20	40
21.00–21.99	20	20	40
22.00–22.99	20	20	40
Total	540	543	1 083