20 21 21.5 22.5 23 23.5 24 25 25.5 26 26.5 28 28.5 29 30 30.5 31 32 32.5 33 33.5 34.5 35 35.5 36 37 37.5 38 38.5 39 39.5 40 40.5 41.5 42 42.5 43 44 44.5 45 45.5 46.5 47 47.5 50