condition mean min max 2 h after light 6.43589 3.2252 8.31607 6 h after light 4.628211666666667 2.69383 6.836 10 h after light 4.749856666666667 3.47874 6.54371 14 h after light 5.18828 3.19839 6.14938 18 h after light 6.445638333333333 4.31899 8.1284 2 h after dark 5.539035 4.40333 7.04171