Boys

0-3 months 1 3-6 months 2 6 months 2 6-9 months 3 6-12 months 2 9 months 1 9-12 months 6 12 months 4 12-18 months 6 12-24 months 1 18 months 3 18-24 months 3 24 months 2 1 Years 4 1 - 1.5 Years 1 1.5 - 2 Years 5 1-2 Years 4 2 Years 31 2-3 Years 40 2-4 Years 1 3 Years 29 3-4 Years 47 4 Years 74 4-5 Years 39 4 Tall 1 4-6 Years 1 5 Years 44 5-6 Years 80 6 Years 73 6-7 Years 30 6-8 Years 2 7 Years 42 7 Tall 2 7-8 Years 73 8 Years 53 8-9 Years 23 8-10 Years 5 9 Years 15 9-10 Years 52 10 Years 35 10-11 Years 7 10-12 Years 11 11 Years 7 11-12 Years 33 12 Years 26 12-13 Years 6 12-14 Years 6 13 Years 4 13-14 Years 23 14 Years 15 14-15 Years 3 14-16 Years 9 15 Years 6 15-16 Years 4 16 Years 9 16 + Years 2 16-17 Years 1 18 Years 1 18-20 Years 6