condition mean min max 2 h after light 2.1462766666666666 1.20835 2.77697 6 h after light 1.224914 0.773663 1.715 10 h after light 1.26699 0.49642 1.91331 14 h after light 2.088363333333333 1.60672 2.37135 18 h after light 2.398816666666667 1.10854 4.09175 2 h after dark 2.82238 1.96818 4.30327