Vol% Mass% 0 0 4.4 5 8.9 10 13.6 15 18.1 20 19.2 21 20.1 22 21 23 22 24 22.9 25 23.9 26 24.8 27 25.8 28 26.7 29 27.7 30 28.7 31 29.6 32 30.6 33 31.6 34 32.6 35 33.5 36 34.5 37 35.5 38 36.5 39 37.5 40 38.5 41 39.5 42 40.5 43 41.5 44 42.5 45 43.5 46 44.5 47 45.5 48 46.6 49 47.6 50 48.6 51 49.6 52 50.6 53 51.6 54 52.7 55 53.7 56 54.7 57 55.7 58 56.8 59 57.8 60