condition mean min max 4 h after light 12.7130665 11.33889 14.087243 8 h after light 11.7403025 11.074471 12.406134 12 h after light 11.8809525 11.274418 12.487487 4 h after dark 12.18945 11.94333 12.43557 8 h after dark 12.634232 12.43557 12.832894 12 h after dark 10.72596 10.72596 10.72596