26/28 26-28 27-30 29/31 29-31 31-34 35-38 35-38 35/38 36-38 37-38 39-42 39/42 43/46 43-46 47-49 3-5 9-11 2-4 6-8 10-12 30-34 42-46 24-26 34-36 37-39 6.5-9 40-42 43-45 46-48 37/39 40/42 43/45 39-42 36-40 41-46 14/16 38-41 42-45 2/3 32/35 34-39 21-26 27-33 28/31 24/27 25-29 20-24 39/40 38/39 40/41 7/9 years 36,5 - 42 42 - 47,5 47,5 - 50,5