condition mean min max 4 h after light 2.17651 2.10257 2.25045 8 h after light 0.6130195 0.5095 0.716539 12 h after light 0.543561 0.422132 0.66499 4 h after dark 1.55898 1.47811 1.67619 8 h after dark 1.7988866666666667 1.66815 1.87907 12 h after dark 2.0873166666666667 1.85971 2.25033