1 2 3 3.5 4-5 4 4.5 5 5.5 5/6 5-6 6 6.5 6-7 7 7.5 7/8 7-8 8 8.5 8-9 9 9.5 9/10 9-10 10 10.5 11 11/12 11-12 11-13 12 13/14 13-14 14 14-16 16 104-110 104 110-116 116-122 122-128 128-134 134-140 140 140-146 146-152 I II III IV 4-7 5-7 8-11 12-15 2.5 8-10 1-2 2-3 1.5 2/3 1/2 2XS 1/2Y years 2/3Y years 4/5Y years 10/12Y years 4/6Y years 7/9Y years