condition mean min max 4 h after light 10.98019 9.28148 12.6789 8 h after light 12.5799 12.1523 13.0075 12 h after light 14.82515 14.5102 15.1401 4 h after dark 17.052966666666666 16.8204 17.3105 8 h after dark 17.031399999999998 16.7806 17.2169 12 h after dark 12.949466666666666 12.4759 13.3147