Newborn S M 20-21 24-25 26-27 28-29 0-3 Month 0-6 Month 0-18 Month 0-24 Month 3-6 Month 6-9 Month 6-12 Month 9-12 Month 12-18 Month 12-24 Month 0-24 Months 0-1 Year 1-2 Year 1-3 Year 1-5 Year 2 Year 2-4 Year 2.5 Year 3 Year 3-4 Year 3-5 Year 3-6 Year 3-7 Year 3.5 Year 4 Year 4-6 Year 4-8 Year 4-10 Year 5-6 Year 5-7 Year 5-8 Year 5-10 Year 7-8 Year 6 Month to 3 Year