Newborn 1 Month 2 Months 4 Months 6 Months 9 Months 12 Months 15 Months 18 Months 2 Years 2 1/2 Years 3 Years 4 Years 5-6 Years 7-8 Years 9-10 Years 11-14 Years 15-17 Years 18-21 Years
