Table 1. Number of subjects per Age and within Merged Age Groups.

N in Combined Sample (M/F)	Ages	Merged Age Groups	N in Combined Sample (M/F)
6 (3/3)	5 years	Group 1	16 (8/8)
10 (5/5)	6 years
20 (10/10)	7 years	Group 2	36 (18/18)
16 (8/8)	8 years
12 (6/6)	9 years	Group 3	30 (15/15)
18 (9/9)	10 years
12 (6/6)	11 years	Group 4	36 (18/18)
24 (12/12)	12 years
18 (9/9)	13 years	Group 5	34 (17/17)
16 (8/8)	14 years
8 (4/4)	15 years	Group 6	20 (10/10)
12 (6/6)	16 years
12 (6/6)	17 years	Group 7	18 (9/9)
6 (3/3)	18 years

M = Males; F = Females