present 55 present 59 present 75 present 67 present 45 present 85 present 65 absent 0 present 55 present 69 present 84 present 58 present 88 present 83 present 57 present 47 present 56 present 77 absent 0 present 65 present 55 present 68 present 61 present 61 present 85 present 54 present 59 present 65 present 55 present 77 present 79 present 68