condition mean min max 4 h after light 7.70916 6.66006 8.75826 8 h after light 5.37216 4.81126 5.93306 12 h after light 5.8799399999999995 5.86212 5.89776 4 h after dark 7.522076666666667 6.66494 8.23353 8 h after dark 10.610766666666667 10.3904 10.754 12 h after dark 8.01584 7.76458 8.35563