condition mean min max 4 h after light 94.5214 92.1603 96.8825 8 h after light 56.97665 53.805 60.1483 12 h after light 56.0391 52.419 59.6592 4 h after dark 44.40645 44.4016 44.4113 8 h after dark 57.17035 56.2464 58.0943 12 h after dark 87.98515 84.3653 91.605